Planet Candidates from K2 Campaigns 5–8 and Follow-up Optical Spectroscopy

During its prime mission, Kepler achieved photometric precisions of ≈40 ppm on 6.5 hr timescales (Christiansen et al. 2012) for targets of ≈12 mag in the Kepler bandpass (i.e., Kp ≈ 12 mag). For many stars, photometric precision was limited by intrinsic stellar variability rather than photon-limited or instrumental errors. This exquisite precision was due in large part to stable pointing enabled by four (and later three) reaction wheels, which stabilized the telescope against solar radiation pressure across the three axes of the telescope. Photometry for individual target stars was extracted using stationary software apertures composed of integer numbers of connected pixels.

During K2 operations, where the spacecraft uses the two remaining operational reaction wheels, solar radiation pressure causes drifts of ∼1 pixel to occur on ∼6 hr timescales. As stars drift across the CCD, variations in pixel sensitivities and variable aperture losses result in apparent brightness variations.

Several techniques have been developed to correct for the position-dependent brightness variations due to the unstable platform of K2. A non-exhaustive list includes k2sff (Vanderburg & Johnson 2014), k2phot (Crossfield et al. 2015, 2016; Petigura et al. 2015), and k2sc (Aigrain et al. 2015), which model stellar brightness as a function of spacecraft orientation with a function and remove it from the light curve. The everest package (Luger et al. 2016) builds on the pixel-level decorrelation approach developed for Spitzer (Deming et al. 2015) and decorrelates against the pixel-by-pixel photometric time series.

We generated light curves for 87913 stars observed by K2 during C5–C8 using the publicly available k2phot Python package.¹² The general methodology is described in previous works (Crossfield et al. 2015, 2016; Petigura et al. 2015). However, due to the evolving nature of K2 systematics, we have continued to adapt and refine k2phot and summarize the methodology below.

As systematics in the photometry are largely due to pointing drifts, accurate knowledge of the spacecraft orientation is important for removing orientation-dependent systematics. We characterize the time-dependent orientation of the Kepler spacecraft by analyzing the positions of ≈100 bright but unsaturated stars having ${Kp}\approx 12$ mag on a representative output channel of the Kepler CCD.¹³ For each long-cadence integration, we solve for the affine transformation that maps that frame to an arbitrary reference frame. We then use the sequence of affine transformations to transform a reference pixel coordinate on a reference frame¹⁴ to the pixel coordinate on all other frames in the campaign.

We extract photometry using stationary apertures. Aperture size is described by a single variable ${N}_{\mathrm{pix}}$, the number of pixels in the aperture. Apertures are constructed to accommodate image motion during a campaign. We construct apertures using a composite image constructed from the 90th percentile intensity value of all frames in a campaign. Because the stars move during K2 observations, the 90th percentile image is smeared out and the apertures constructed from this image accommodate the drifts, mitigating severe aperture losses. The apertures are then constructed by selecting the pixel closest to the expected position of the target star, as predicted by the WCS coordinates provided by the K2 project. Additional pixels are added iteratively by selecting the brightest pixel touching the current mask.

During the photometric extraction, we search for the aperture size ${N}_{\mathrm{pix},\min }$ that minimizes noise on three-hour times scales. This aperture size strikes a balance between the desire to minimize systematic noise, which grows with decreasing aperture size, and background noise, which grows with increasing aperture size. We select an initial size ${N}_{\mathrm{pix},0}$, which is motivated by previous analyses of stars with similar ${Kp}$. We then try six logarithmically spaced ${N}_{\mathrm{pix}}$ between ${N}_{\mathrm{pix},0}/4$ and ${N}_{\mathrm{pix},0}\times 4$, which samples a curve describing noise as a function of ${N}_{\mathrm{pix}}$. We find ${N}_{\mathrm{pix},\min }$ using up to three iterations of Newton's method. While testing different aperture sizes, we constrain ${N}_{\mathrm{pix}}$ to be between nine pixels and the total number of pixels in the target pixel file.

After extraction of the photometry, we have a sequence of flux as a function of x, y, and t. We model out changes in flux that correlate with changes in x, y, and t using a Gaussian process with a squared-exponential covariance kernel, which is characterized by the following seven hyper-parameters A_x, l_x, A_y, l_y, A_t, l_t, and σ. Here, A corresponds to the amplitude of the GP, l corresponds to characteristic length scale, and σ accounts for a white noise component. Choosing the appropriate hyper-parameters can be computationally intensive on a star-by-star basis. We therefore adopt a scheme from Aigrain et al. (2015), which optimizes the hyper-parameters on a subset of the photometry using a differential evolution global optimizer (Storn & Price 1997).

We produced light curves for 87913 stars in C5–C8, which are available on the Exoplanet Follow-up Observing Program (ExoFOP) website.¹⁵ Along with the photometry, we included photometric diagnostic plots showing the extraction aperture and resulting detrended light curve. Figure 1 shows these diagnostic plots for an example planet candidate around EPIC-211736671.

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Our general transit search and vetting process is similar to that described in Crossfield et al. (2016). We give a brief summary of here. We searched the calibrated photometry for transiting planets using the publicly available TERRA algorithm.¹⁶ TERRA is a matched filter-based approach and is described by Petigura et al. (2013). TERRA convolves the photometry with a box-shaped approximation of a transit profile to compute a Single Event Statistic (SES) at every K2 long-cadence measurement. The SES time series is phase-folded according to a finely spaced grid of trial periods P and times of first transit ${T}_{0}$.

A classical matched-filter algorithm would then compute a Multiple Event Statistic (MES) by summing SES at each trial (P, ${T}_{0}$), which is optimal given uncorrelated Gaussian noise. However, in K2 photometry we observe more frequent non-Gaussian anomalies relative to Kepler prime photometry due to the aggressive detrending that must be performed in order to remove the instrumental systematics described above. A traditional MES computation resulted in many spurious peaks with apparently high MES, but were later easily identifiable as anomalies through inspection. We address outliers by calculating MES only after removing the two highest SES peaks at each trial (P, ${T}_{0}$). Spurious peaks due to the chance alignment of two outliers are eliminated. This nonlinear filter removes many spurious detections and eases the burden during manual vetting, described below. One consequence is that TERRA does not identify planets with one or two transits occurring in a K2 campaign. Such transits are sometimes identified by eye, but we caution that many are likely overlooked. These events are especially amenable to searches by citizen scientists (see, e.g., Christiansen et al. 2017).¹⁷

TERRA identifies ∼1000 Threshold-Crossing Events (TCEs) per campaign. A TCE is a particular combination of (P, ${T}_{0}$) that has MES that exceeds some threshold, but may not be an astrophysical transit. If a candidate has a periodic dimming of a consistent shape it is elevated to the status of a "K2 Object of Interest" (K2OIs), which are consistent with an astrophysical transit or eclipse.

Our team visually inspects each K2OI to look for a robust indication that the target is an eclipsing binary. We look for secondary eclipses, which indicate that the transiting object is self-luminous and not a planet. Secondary eclipses associated with binaries with circular orbits are shifted in phase from the primary eclipse by 180°. We search for secondary eclipses at all phases to allow for eccentric orbits. We also look for obvious odd/even variations, which indicate that TERRA has identified a nearly circular EB at half the orbital period. We also identify stars that show variability that is phase-locked to the eclipse, which is a strong indicator of star-star modulation (ellipsoidal, reflection, or relativistic beaming).

Our eclipsing binary designation does not incorporate transit depth or whether the light curve is V-shaped. While these attributes are strong indicators of EB status, they are not conclusive. Planets transiting small M-dwarf stars can easily produce transits deeper than 1% and short period transits may appear V-shaped due to the 30-minute sampling of K2. We defer a detailed false-positive calculation for a later paper.

In total, we identified 167 K2OIs, associated with 157 stars. Of these, 16/167 are likely eclipsing binaries, and we refer to the remaining 151 as planet candidates.

We fit the calibrated photometry according to the methodology of Crossfield et al. (2016). In brief, we used the publicly available batman light curve code (Kreidberg 2015) to generate model light curves that we then compared against the photometry. We first derived a maximum likelihood solution and then derived parameter uncertainties using Markov Chain Monte Carlo (MCMC).¹⁸

In our modeling, the following parameters are allowed to vary: time of first transit T₀, orbital period P, inclination i, scaled semimajor axis a/${R}_{\star }$, planet-star radius ratio ${R}_{P}$/${R}_{\star }$, orbital eccentricity e, longitude of periastron ω, linear limb-darkening coefficient u, fractional light curve dilution δ, and the out-of-transit flux level.

During the fitting, we adopted the following priors.

• 1.  
  Period. Gaussian prior centered on maximum likelihood P having dispersion of 0.01 days.¹⁹
• 2.  
  Time of transit. Uniform prior centered on maximum likelihood T₀ having dispersion of $0.06\times P$.
• 3.  
  Radius ratio. Uniform prior, ${R}_{P}$/${R}_{\star }$ = [−1, +1]. Following Eastman et al. (2013), we allow for negative ${R}_{P}$/${R}_{\star }$ in our sampling to avoid the Lucy-Sweeney-type bias that results from treating ${R}_{P}$/${R}_{\star }$ as a positive-definite quantity (Lucy & Sweeney 1971).
• 4.  
  Eccentricity. Gaussian prior centered at 10⁻⁴ having dispersion of 10⁻³. This effectively restricts the orbits to circular.
• 5.  
  Longitude of periastron. Uniform prior, ω = [0, 2π].
• 6.  
  Inclination. Uniform prior, i = [50°, 90°].
• 7.  
  Limb-darkening. Gaussian prior on u where the mean and dispersion are computed using the publicly available Limb-darkening Toolkit (LDTK; Parviainen & Aigrain2015). LDTK computes the distribution of u given Gaussian constraints on ${T}_{\mathrm{eff}}$, $\mathrm{log}g$, and $[\mathrm{Fe}/{\rm{H}}]$. For consistency, we used ${T}_{\mathrm{eff}}$, $\mathrm{log}g$, and $[\mathrm{Fe}/{\rm{H}}]$ constrained by broadband photometry from Huber et al. (2016). While photometrically constrained $\mathrm{log}g$ and $[\mathrm{Fe}/{\rm{H}}]$ are low-precision, u is only weakly dependent on these parameters, and the derived transit parameters are only weakly dependent on u.
• 8.  
  Dilution. Log-uniform prior, $\mathrm{log}\delta =[{10}^{-6}$, 10⁰]. Our fits do not incorporate dilution constraints, so δ always reverts to the prior. We include δ so we can incorporate dilution constraints at later times.²⁰

In Table 1, we report 1σ credible ranges on P, T₀, ${R}_{P}$/${R}_{\star }$, transit duration T₁₄, and impact parameter b.

Table 1.  Planet Candidates

Cand.		${Kp}$	${R}_{\star }$	Prov.	P	${R}_{P}$/${R}_{\star }$	T14	b	${R}_{P}$	EB	Comments
		mag	${R}_{\odot }$		days	%	hr		${R}_{\oplus }$
C5	211401787.01	9.7	1.25	S	13.8	${1.60}_{-0.06}^{+0.13}$	${4.54}_{-0.12}^{+0.13}$	${0.43}_{-0.30}^{+0.32}$	${2.2}_{-0.2}^{+0.4}$	0	⋯
C5	211945201.01	10.1	1.48	S	19.5	${3.73}_{-0.08}^{+0.23}$	${3.58}_{-0.05}^{+0.12}$	${0.46}_{-0.32}^{+0.28}$	${6.0}_{-0.8}^{+0.9}$	0	⋯
C5	211990866.01	10.4	1.23	S	1.7	${2.72}_{-0.10}^{+0.26}$	${1.54}_{-0.05}^{+0.05}$	${0.46}_{-0.32}^{+0.32}$	${3.6}_{-0.2}^{+0.4}$	0	∼1% spot modulation
C5	212099230.01	10.5	0.96	S	7.1	${3.02}_{-0.10}^{+0.11}$	${3.13}_{-0.06}^{+0.05}$	${0.97}_{-0.01}^{+0.01}$	${3.2}_{-0.2}^{+0.3}$	0	⋯
C5	211594205.01	10.7	0.79	S	17.0	${1.82}_{-0.10}^{+0.24}$	${2.49}_{-0.09}^{+0.11}$	${0.48}_{-0.33}^{+0.30}$	${1.6}_{-0.1}^{+0.2}$	0	⋯
C5	212110888.01	11.4	1.38	S	3.0	${8.70}_{-0.05}^{+0.05}$	${2.36}_{-0.02}^{+0.01}$	${0.77}_{-0.01}^{+0.01}$	${13.1}_{-1.6}^{+1.8}$	0	⋯
C5	211525389.01	11.7	0.98	S	8.3	${3.28}_{-0.07}^{+0.19}$	${3.40}_{-0.05}^{+0.06}$	${0.38}_{-0.27}^{+0.29}$	${3.5}_{-0.2}^{+0.4}$	0	⋯
C5	211359660.01	11.7	0.82	S	4.7	${3.17}_{-0.06}^{+0.18}$	${2.57}_{-0.03}^{+0.04}$	${0.34}_{-0.24}^{+0.30}$	${2.9}_{-0.1}^{+0.2}$	0	⋯
C5	212012119.01	11.8	0.75	S	3.3	${2.85}_{-0.12}^{+0.29}$	${1.93}_{-0.04}^{+0.05}$	${0.43}_{-0.29}^{+0.30}$	${2.3}_{-0.1}^{+0.3}$	0	⋯
C5	212012119.02	11.8	0.75	S	8.4	${2.99}_{-0.14}^{+0.36}$	${2.34}_{-0.06}^{+0.08}$	${0.48}_{-0.32}^{+0.29}$	${2.5}_{-0.1}^{+0.3}$	0	⋯
C5	211491383.01	11.8	1.28	S	4.1	${0.97}_{-0.07}^{+0.13}$	${2.71}_{-0.21}^{+0.23}$	${0.50}_{-0.33}^{+0.33}$	${1.4}_{-0.2}^{+0.3}$	0	⋯
C5	211391664.01	12.1	1.39	S	10.1	${2.95}_{-0.06}^{+0.12}$	${4.97}_{-0.09}^{+0.11}$	${0.38}_{-0.26}^{+0.29}$	${4.5}_{-0.5}^{+0.6}$	0	⋯
C5	211736671.01	12.2	1.77	S	4.7	${2.76}_{-0.07}^{+0.18}$	${3.55}_{-0.06}^{+0.07}$	${0.41}_{-0.28}^{+0.30}$	${5.3}_{-0.7}^{+0.9}$	0	⋯
C5	212066407.01	12.2	1.07	S	0.8	${2.22}_{-0.09}^{+0.21}$	${0.83}_{-0.05}^{+0.05}$	${0.51}_{-0.35}^{+0.32}$	${2.6}_{-0.3}^{+0.4}$	2	⋯
C5	211319617.01	12.4	0.65	S	8.9	${6.15}_{-2.79}^{+8.29}$	${0.30}_{-0.20}^{+1.18}$	${0.63}_{-0.43}^{+0.38}$	${4.4}_{-2.0}^{+5.9}$	0	⋯
C5	211342524.01	12.4	1.36	S	14.4	${29.69}_{-4.64}^{+11.04}$	${3.75}_{-0.02}^{+0.02}$	${0.98}_{-0.07}^{+0.14}$	${44.2}_{-8.6}^{+17.5}$	0	Deep (3%); V-shaped
C5	211351816.01	12.4	4.79	S	8.4	${2.20}_{-0.16}^{+0.35}$	${5.72}_{-0.27}^{+0.28}$	${0.52}_{-0.35}^{+0.31}$	${11.5}_{-1.8}^{+2.8}$	0	⋯
C5	211800191.01	12.4	0.84	S	1.1	${17.08}_{-11.25}^{+24.11}$	${0.00}_{-0.00}^{+0.53}$	${1.25}_{-0.20}^{+0.36}$	${15.6}_{-10.3}^{+22.1}$	0	V-shaped
C5	212006344.01	12.5	0.63	S	2.2	${1.87}_{-0.11}^{+0.24}$	${1.27}_{-0.09}^{+0.09}$	${0.50}_{-0.34}^{+0.32}$	${1.3}_{-0.2}^{+0.3}$	0	⋯
C5	211355342.01	12.6	1.11	S	6.9	${2.28}_{-0.13}^{+0.21}$	${2.44}_{-0.16}^{+0.15}$	${0.49}_{-0.34}^{+0.31}$	${2.8}_{-0.3}^{+0.4}$	0	⋯
C5	212164470.01	12.7	1.19	S	7.8	${2.24}_{-0.11}^{+0.25}$	${3.58}_{-0.13}^{+0.14}$	${0.46}_{-0.30}^{+0.32}$	${2.9}_{-0.3}^{+0.5}$	0	⋯
C5	211562654.01	12.8	0.92	S	10.8	${2.68}_{-0.10}^{+0.24}$	${3.85}_{-0.14}^{+0.16}$	${0.47}_{-0.32}^{+0.31}$	${2.7}_{-0.2}^{+0.3}$	0	Multi
C5	211562654.02	12.8	0.92	S	22.6	${17.29}_{-13.31}^{+42.34}$	${4.14}_{-0.96}^{+0.45}$	${1.14}_{-0.17}^{+0.44}$	${17.4}_{-13.4}^{+42.7}$	0	Multi
C5	212008766.01	12.8	0.74	S	14.1	${2.72}_{-0.12}^{+0.31}$	${3.23}_{-0.15}^{+0.18}$	${0.50}_{-0.34}^{+0.32}$	${2.2}_{-0.1}^{+0.3}$	0	⋯
C5	212157262.01	12.9	0.96	S	7.1	${3.24}_{-0.16}^{+0.45}$	${2.84}_{-0.12}^{+0.18}$	${0.55}_{-0.38}^{+0.32}$	${3.4}_{-0.2}^{+0.5}$	0	Multi
C5	212157262.02	12.9	0.96	S	13.6	${2.43}_{-0.13}^{+0.26}$	${4.03}_{-0.24}^{+0.26}$	${0.49}_{-0.33}^{+0.32}$	${2.5}_{-0.2}^{+0.3}$	0	Multi
C5	212157262.03	12.9	0.96	S	2.9	${1.76}_{-0.13}^{+0.21}$	${2.19}_{-0.24}^{+0.25}$	${0.52}_{-0.35}^{+0.32}$	${1.8}_{-0.2}^{+0.3}$	0	Multi
C5	212138198.01	12.9	0.89	S	3.2	${41.32}_{-27.13}^{+37.69}$	${0.84}_{-0.09}^{+0.08}$	${1.36}_{-0.30}^{+0.39}$	${40.1}_{-26.4}^{+36.7}$	0	V-shaped
C5	211818569.01	12.9	0.71	S	5.2	${10.05}_{-0.05}^{+0.13}$	${2.03}_{-0.01}^{+0.01}$	${0.14}_{-0.10}^{+0.14}$	${7.7}_{-1.1}^{+1.1}$	0	⋯
C5	211439059.01	13.1	0.84	S	18.6	${1.91}_{-0.16}^{+0.30}$	${5.06}_{-0.46}^{+0.49}$	${0.51}_{-0.34}^{+0.32}$	${1.8}_{-0.2}^{+0.3}$	0	⋯
C5	211919004.01	13.1	0.86	S	11.7	${4.54}_{-0.43}^{+2.89}$	${5.19}_{-0.36}^{+0.19}$	${0.96}_{-0.04}^{+0.06}$	${4.2}_{-0.4}^{+2.7}$	0	⋯
C5	211442297.01	13.2	0.86	S	20.3	${12.21}_{-0.21}^{+0.18}$	${3.70}_{-0.07}^{+0.06}$	${0.47}_{-0.15}^{+0.08}$	${11.5}_{-0.6}^{+0.8}$	0	⋯
C5	211428897.01	13.2	0.56	P	1.6	${2.49}_{-0.16}^{+0.38}$	${1.07}_{-0.06}^{+0.07}$	${0.53}_{-0.35}^{+0.31}$	${1.5}_{-0.6}^{+0.7}$	0	Multi
C5	211428897.02	13.2	0.56	P	2.2	${1.93}_{-0.15}^{+0.30}$	${1.29}_{-0.13}^{+0.14}$	${0.52}_{-0.35}^{+0.32}$	${1.2}_{-0.5}^{+0.5}$	0	Multi
C5	211490999.01	13.4	0.91	S	9.8	${3.05}_{-0.11}^{+0.32}$	${3.63}_{-0.10}^{+0.16}$	${0.51}_{-0.34}^{+0.31}$	${3.0}_{-0.2}^{+0.4}$	0	⋯
C5	211529065.01	13.4	0.82	S	4.4	${3.68}_{-0.20}^{+0.52}$	${1.56}_{-0.06}^{+0.07}$	${0.48}_{-0.32}^{+0.30}$	${3.3}_{-0.2}^{+0.5}$	0	Multi
C5	211529065.02	13.4	0.82	S	1.5	${1.69}_{-0.14}^{+0.28}$	${1.76}_{-0.18}^{+0.16}$	${0.51}_{-0.35}^{+0.33}$	${1.5}_{-0.1}^{+0.3}$	0	Multi
C5	211413752.01	13.5	0.78	S	9.3	${3.68}_{-0.63}^{+5.79}$	${2.81}_{-0.31}^{+0.36}$	${0.81}_{-0.53}^{+0.24}$	${3.1}_{-0.5}^{+4.9}$	0	⋯
C5	211713099.01	13.6	0.83	S	8.6	${6.65}_{-0.07}^{+0.18}$	${3.24}_{-0.02}^{+0.03}$	${0.23}_{-0.16}^{+0.19}$	${6.0}_{-0.3}^{+0.4}$	0	⋯
C5	211816003.01	13.7	0.74	S	14.5	${3.36}_{-0.19}^{+0.41}$	${3.47}_{-0.16}^{+0.19}$	${0.48}_{-0.31}^{+0.30}$	${2.7}_{-0.2}^{+0.4}$	0	⋯
C5	211331236.01	13.9	0.52	S	1.3	${3.73}_{-0.17}^{+0.41}$	${1.19}_{-0.07}^{+0.07}$	${0.47}_{-0.32}^{+0.33}$	${2.1}_{-0.4}^{+0.5}$	0	Multi
C5	211331236.02	13.9	0.52	S	5.4	${3.69}_{-0.20}^{+0.38}$	${2.18}_{-0.15}^{+0.17}$	${0.47}_{-0.32}^{+0.31}$	${2.1}_{-0.4}^{+0.5}$	0	Multi
C5	212069861.01	14.1	0.64	S	31.0	${4.29}_{-0.22}^{+0.52}$	${3.76}_{-0.16}^{+0.20}$	${0.43}_{-0.29}^{+0.29}$	${3.0}_{-0.5}^{+0.6}$	0	⋯
C5	211929937.01	14.2	0.84	S	3.5	${12.52}_{-0.05}^{+0.10}$	${2.54}_{-0.01}^{+0.01}$	${0.11}_{-0.08}^{+0.11}$	${11.5}_{-0.5}^{+0.6}$	0	⋯
C5	211418729.01	14.3	0.90	S	11.4	${11.31}_{-0.11}^{+0.24}$	${3.83}_{-0.03}^{+0.04}$	${0.20}_{-0.13}^{+0.16}$	${11.1}_{-0.6}^{+0.8}$	0	⋯
C5	211578235.01	14.3	0.94	S	11.0	${40.56}_{-25.60}^{+37.66}$	${1.54}_{-0.07}^{+0.07}$	${1.29}_{-0.30}^{+0.39}$	${41.5}_{-26.4}^{+39.0}$	0	⋯
C5	211399359.01	14.4	0.77	S	3.1	${14.93}_{-0.06}^{+0.13}$	${2.36}_{-0.01}^{+0.01}$	${0.10}_{-0.07}^{+0.10}$	${12.5}_{-0.4}^{+0.5}$	0	⋯
C5	211978865.01	14.4	1.21	S	0.9	${58.31}_{-27.44}^{+29.46}$	${0.00}_{-0.00}^{+0.94}$	${1.69}_{-0.41}^{+0.45}$	${77.0}_{-36.6}^{+39.8}$	0	⋯
C5	212130773.01	14.5	0.77	S	18.7	${3.78}_{-0.23}^{+0.43}$	${6.48}_{-0.28}^{+0.29}$	${0.42}_{-0.29}^{+0.29}$	${3.2}_{-0.2}^{+0.4}$	0	⋯
C5	211770795.01	14.5	0.71	S	7.7	${3.35}_{-0.27}^{+0.61}$	${2.84}_{-0.23}^{+0.25}$	${0.52}_{-0.35}^{+0.32}$	${2.6}_{-0.4}^{+0.6}$	0	⋯
C5	212150006.01	14.7	0.79	P	0.9	${37.28}_{-24.31}^{+30.56}$	${0.00}_{-0.00}^{+0.00}$	${1.58}_{-0.40}^{+0.47}$	${32.0}_{-24.5}^{+29.2}$	0	V-shaped
C5	211924657.01	15.0	0.50	P	2.6	${19.51}_{-13.30}^{+43.78}$	${1.53}_{-1.53}^{+0.25}$	${1.13}_{-0.29}^{+0.52}$	${10.7}_{-8.4}^{+24.3}$	0	⋯
C5	212154564.01	15.1	0.35	P	6.4	${6.76}_{-0.27}^{+0.70}$	${1.75}_{-0.07}^{+0.09}$	${0.36}_{-0.25}^{+0.29}$	${2.6}_{-1.0}^{+1.1}$	0	⋯
C5	211916756.01	15.5	0.43	P	10.1	${31.61}_{-23.33}^{+43.78}$	${3.37}_{-0.43}^{+0.28}$	${1.20}_{-0.45}^{+0.47}$	${14.8}_{-12.5}^{+21.4}$	0	⋯
C5	211509553.01	15.7	0.53	P	20.4	${17.30}_{-0.12}^{+0.22}$	${3.59}_{-0.03}^{+0.03}$	${0.12}_{-0.08}^{+0.11}$	${10.0}_{-4.0}^{+4.0}$	0	⋯
C5	211799258.01	16.0	0.45	P	19.5	${25.93}_{-1.29}^{+6.68}$	${1.29}_{-0.05}^{+0.07}$	${0.43}_{-0.29}^{+0.34}$	${12.7}_{-5.1}^{+6.0}$	0	Deep (8%);V-shaped
C5	211831378.01	16.3	0.28	P	3.5	${51.67}_{-27.70}^{+29.86}$	${2.12}_{-0.66}^{+0.38}$	${1.45}_{-0.32}^{+0.34}$	${15.6}_{-10.4}^{+10.9}$	1	⋯
C5	211910968.01	16.5	0.23	P	4.5	${18.62}_{-0.14}^{+0.19}$	${5.20}_{-0.04}^{+0.04}$	${0.09}_{-0.06}^{+0.10}$	${4.7}_{-1.9}^{+1.9}$	1	Eccentric EB; depth uncertain
C5	211413463.01	17.3	0.63	P	3.3	${48.64}_{-18.79}^{+27.21}$	${2.72}_{-0.40}^{+0.20}$	${1.37}_{-0.22}^{+0.31}$	${33.2}_{-18.5}^{+22.8}$	0	Transit likely due to nearby star; depth uncertain
C5	211375488.01	17.5	2.00	P	4.2	${43.48}_{-27.97}^{+36.92}$	${2.73}_{-0.20}^{+0.19}$	${1.26}_{-0.35}^{+0.40}$	${94.8}_{-71.8}^{+89.0}$	0	⋯
C6	212727070.01	9.4	1.15	P	15.5	${54.40}_{-11.88}^{+17.34}$	${6.14}_{-0.05}^{+0.06}$	${1.14}_{-0.16}^{+0.19}$	${68.4}_{-31.2}^{+35.0}$	1	⋯
C6	212357477.01	10.2	1.01	S	6.3	${2.01}_{-0.12}^{+0.27}$	${1.83}_{-0.09}^{+0.10}$	${0.50}_{-0.34}^{+0.31}$	${2.2}_{-0.2}^{+0.4}$	0	⋯
C6	212351868.01	10.2	0.94	P	2.5	${24.46}_{-0.05}^{+0.07}$	${5.63}_{-0.01}^{+0.02}$	${0.07}_{-0.05}^{+0.06}$	${25.1}_{-10.1}^{+10.1}$	1	⋯
C6	212651120.01	10.5	1.08	P	0.7	${1.39}_{-0.03}^{+0.04}$	${4.69}_{-0.95}^{+0.27}$	${0.53}_{-0.33}^{+0.27}$	${1.6}_{-0.7}^{+0.7}$	2	⋯
C6	212703473.01	10.7	1.11	S	6.8	${1.33}_{-0.11}^{+0.19}$	${2.77}_{-0.28}^{+0.27}$	${0.50}_{-0.34}^{+0.32}$	${1.6}_{-0.2}^{+0.3}$	0	⋯
C6	212803289.01	11.0	1.98	S	18.3	${3.85}_{-0.07}^{+0.13}$	${11.05}_{-0.11}^{+0.16}$	${0.38}_{-0.25}^{+0.23}$	${8.3}_{-1.2}^{+1.3}$	0	⋯
C6	212773309.01	11.4	0.86	S	4.7	${24.44}_{-0.28}^{+0.29}$	${2.28}_{-0.02}^{+0.02}$	${0.69}_{-0.02}^{+0.02}$	${22.9}_{-1.0}^{+1.3}$	1	⋯
C6	212577658.01	11.5	0.84	P	14.1	${2.01}_{-0.12}^{+0.29}$	${2.99}_{-0.12}^{+0.12}$	${0.49}_{-0.33}^{+0.30}$	${1.8}_{-0.7}^{+0.8}$	0	⋯
C6	212782836.01	11.6	0.76	S	7.1	${1.26}_{-0.09}^{+0.17}$	${3.14}_{-0.25}^{+0.26}$	${0.49}_{-0.33}^{+0.32}$	${1.0}_{-0.1}^{+0.1}$	0	low S/N
C6	212521166.01	11.6	0.68	S	13.9	${3.33}_{-0.08}^{+0.22}$	${3.20}_{-0.05}^{+0.06}$	${0.41}_{-0.27}^{+0.28}$	${2.5}_{-0.1}^{+0.2}$	0	⋯
C6	212586030.01	11.7	3.83	S	7.8	${37.28}_{-26.58}^{+39.24}$	${1.26}_{-1.26}^{+0.52}$	${1.36}_{-0.29}^{+0.41}$	${155.7}_{-113.0}^{+165.8}$	0	⋯
C6	212300977.01	11.7	1.11	S	4.5	${12.23}_{-0.02}^{+0.04}$	${3.52}_{-0.01}^{+0.01}$	${0.07}_{-0.05}^{+0.07}$	${14.8}_{-1.2}^{+1.7}$	0	⋯
C6	212779596.01	11.9	0.70	S	7.4	${3.94}_{-0.16}^{+0.45}$	${2.45}_{-0.08}^{+0.11}$	${0.48}_{-0.33}^{+0.31}$	${3.0}_{-0.4}^{+0.6}$	0	Multi
C6	212779596.02	11.9	0.70	S	3.2	${2.45}_{-0.13}^{+0.32}$	${2.04}_{-0.10}^{+0.10}$	${0.52}_{-0.35}^{+0.31}$	${1.9}_{-0.3}^{+0.4}$	0	Multi
C6	212735333.01	12.0	0.96	S	8.4	${2.41}_{-0.15}^{+0.32}$	${3.47}_{-0.18}^{+0.19}$	${0.49}_{-0.33}^{+0.31}$	${2.5}_{-0.2}^{+0.4}$	0	⋯
C6	212679181.01	12.0	0.36	P	1.1	${2.49}_{-0.17}^{+0.33}$	${0.49}_{-0.05}^{+0.06}$	${0.50}_{-0.34}^{+0.33}$	${1.0}_{-0.4}^{+0.4}$	0	⋯
C6	212587672.01	12.2	0.95	S	23.2	${2.20}_{-0.13}^{+0.26}$	${3.23}_{-0.16}^{+0.19}$	${0.49}_{-0.34}^{+0.32}$	${2.3}_{-0.2}^{+0.3}$	0	⋯
C6	212697709.01	12.2	1.20	S	4.0	${9.17}_{-0.11}^{+0.11}$	${1.83}_{-0.03}^{+0.02}$	${0.85}_{-0.01}^{+0.01}$	${12.0}_{-1.3}^{+1.7}$	0	WASP-157b
C6	212394689.01	12.2	0.88	S	6.7	${2.71}_{-0.09}^{+0.22}$	${2.71}_{-0.08}^{+0.09}$	${0.46}_{-0.31}^{+0.30}$	${2.6}_{-0.2}^{+0.3}$	0	⋯
C6	212689874.01	12.3	0.95	S	15.9	${2.87}_{-0.08}^{+0.16}$	${4.84}_{-0.12}^{+0.14}$	${0.39}_{-0.27}^{+0.31}$	${3.0}_{-0.2}^{+0.4}$	0	⋯
C6	212435047.01	12.4	1.10	S	1.1	${1.32}_{-0.10}^{+0.19}$	${1.58}_{-0.23}^{+0.21}$	${0.52}_{-0.35}^{+0.34}$	${1.6}_{-0.2}^{+0.3}$	0	V-shaped; low S/N
C6	212460519.01	12.4	0.66	S	7.4	${2.78}_{-0.13}^{+0.31}$	${2.63}_{-0.08}^{+0.09}$	${0.48}_{-0.32}^{+0.28}$	${2.0}_{-0.3}^{+0.4}$	0	⋯
C6	212639319.01	12.5	0.81	P	13.8	${24.21}_{-19.27}^{+44.69}$	${1.77}_{-0.18}^{+0.19}$	${1.20}_{-0.22}^{+0.46}$	${21.4}_{-19.1}^{+40.4}$	0	⋯
C6	212555594.02	12.5	0.83	P	4.2	${1.68}_{-0.17}^{+0.26}$	${1.55}_{-0.20}^{+0.20}$	${0.50}_{-0.34}^{+0.32}$	${1.5}_{-0.6}^{+0.7}$	0	212555594.01 is due to noise, 212555594.02 looks transit-like
C6	212428509.01	12.5	0.94	S	2.7	${49.70}_{-8.53}^{+8.63}$	${2.09}_{-0.19}^{+0.16}$	${1.42}_{-0.10}^{+0.10}$	${50.7}_{-9.7}^{+11.9}$	0	Deep (1%); V-shaped
C6	212585579.01	12.6	1.09	S	3.0	${38.76}_{-24.16}^{+35.69}$	${0.00}_{-0.00}^{+0.00}$	${1.45}_{-0.30}^{+0.44}$	${45.9}_{-28.9}^{+42.6}$	0	V-shaped
C6	212691727.01	12.7	0.87	P	12.9	${23.20}_{-0.49}^{+0.65}$	${4.97}_{-0.05}^{+0.06}$	${0.19}_{-0.13}^{+0.14}$	${22.1}_{-8.8}^{+8.8}$	1	⋯
C6	212572439.01	12.8	0.78	P	2.6	${6.68}_{-0.32}^{+0.40}$	${1.69}_{-0.04}^{+0.07}$	${0.60}_{-0.29}^{+0.16}$	${5.7}_{-2.3}^{+2.3}$	0	EPIC-212572452 (Kp = 14.8) in photometric aperture
C6	212756297.01	13.0	0.66	P	1.3	${15.99}_{-0.01}^{+0.02}$	${1.85}_{-0.00}^{+0.00}$	${0.03}_{-0.02}^{+0.04}$	${11.5}_{-4.6}^{+4.6}$	0	⋯
C6	212580872.01	13.0	0.83	P	14.8	${3.59}_{-0.08}^{+0.16}$	${4.32}_{-0.07}^{+0.09}$	${0.34}_{-0.23}^{+0.27}$	${3.3}_{-1.3}^{+1.3}$	0	⋯
C6	212797028.01	13.1	0.94	P	30.0	${14.81}_{-0.24}^{+0.36}$	${6.37}_{-0.06}^{+0.06}$	${0.85}_{-0.01}^{+0.01}$	${15.3}_{-6.1}^{+6.1}$	0	Deep (∼2%); V-shaped
C6	212443457.01	13.1	0.68	P	24.5	${18.42}_{-6.81}^{+29.25}$	${8.49}_{-0.21}^{+0.18}$	${1.02}_{-0.11}^{+0.34}$	${13.6}_{-7.4}^{+22.3}$	0	Deep (1%); irregular transit shape; possible hierarchical triple
C6	212432685.01	13.1	1.06	P	0.5	${1.69}_{-0.09}^{+0.18}$	${1.59}_{-0.22}^{+0.12}$	${0.48}_{-0.33}^{+0.37}$	${2.0}_{-0.8}^{+0.8}$	0	⋯
C6	212294561.01	13.1	0.85	P	2.8	${21.48}_{-16.50}^{+36.05}$	${0.00}_{-0.00}^{+0.00}$	${1.39}_{-0.29}^{+0.54}$	${19.9}_{-17.2}^{+34.3}$	1	⋯
C6	212418133.01	13.2	0.90	P	3.3	${1.59}_{-0.13}^{+0.23}$	${3.48}_{-0.34}^{+0.31}$	${0.48}_{-0.33}^{+0.33}$	${1.6}_{-0.6}^{+0.7}$	0	⋯
C6	212628098.01	13.3	0.67	P	4.4	${22.72}_{-0.49}^{+0.52}$	${1.63}_{-0.03}^{+0.03}$	${0.64}_{-0.05}^{+0.04}$	${16.6}_{-6.7}^{+6.7}$	0	Deep (∼5%); V-shaped; spot mod.
C6	212839127.01	13.3	1.05	P	20.6	${43.10}_{-11.79}^{+21.49}$	${4.03}_{-0.02}^{+0.02}$	${1.11}_{-0.15}^{+0.24}$	${49.5}_{-24.0}^{+31.6}$	0	Deep (∼5%); V-shaped;
C6	212579164.01	13.6	0.83	P	18.2	${60.70}_{-8.51}^{+14.10}$	${3.59}_{-0.07}^{+0.08}$	${0.74}_{-0.15}^{+0.18}$	${55.0}_{-23.3}^{+25.4}$	0	V-shaped; Deep (∼20%)
C6	212751916.01	13.9	0.90	P	15.7	${24.26}_{-19.77}^{+46.48}$	${2.71}_{-0.47}^{+0.54}$	${1.19}_{-0.41}^{+0.48}$	${23.7}_{-21.5}^{+46.4}$	1	⋯
C6	212570977.01	13.9	0.87	P	8.9	${15.14}_{-0.10}^{+0.10}$	${4.22}_{-0.03}^{+0.03}$	${0.43}_{-0.05}^{+0.04}$	${14.4}_{-5.8}^{+5.8}$	0	⋯
C6	212757039.01	14.4	0.80	P	4.5	${16.06}_{-0.09}^{+0.09}$	${3.34}_{-0.02}^{+0.02}$	${0.79}_{-0.01}^{+0.01}$	${14.0}_{-5.6}^{+5.6}$	1	⋯
C6	212311834.01	14.7	0.76	P	17.8	${57.91}_{-15.49}^{+21.67}$	${2.81}_{-0.02}^{+0.02}$	${1.06}_{-0.21}^{+0.25}$	${47.8}_{-23.0}^{+26.2}$	0	V-shaped; Deep (∼10%)
C6	212554013.01	14.7	0.75	P	3.6	${11.17}_{-0.21}^{+0.38}$	${2.19}_{-0.03}^{+0.06}$	${0.37}_{-0.24}^{+0.19}$	${9.1}_{-3.7}^{+3.7}$	0	⋯
C6	212679798.01	14.8	0.67	P	1.8	${36.83}_{-7.89}^{+31.79}$	${2.19}_{-0.04}^{+0.04}$	${0.86}_{-0.17}^{+0.41}$	${27.1}_{-12.3}^{+25.8}$	1	⋯
C6	212773272.01	15.0	0.25	P	4.7	${19.87}_{-0.68}^{+1.00}$	${2.05}_{-0.11}^{+0.14}$	${0.32}_{-0.22}^{+0.25}$	${5.4}_{-2.2}^{+2.2}$	0	Deep (∼5%);
C6	212421319.01	16.4	0.80	P	5.5	${54.69}_{-28.57}^{+31.61}$	${7.01}_{-2.08}^{+0.99}$	${1.41}_{-0.38}^{+0.38}$	${48.0}_{-31.6}^{+33.7}$	1	⋯
C6	212757601.01	16.8	0.75	P	1.0	${43.93}_{-24.84}^{+34.93}$	${0.96}_{-0.96}^{+0.63}$	${1.40}_{-0.36}^{+0.48}$	${36.1}_{-25.0}^{+32.1}$	0	⋯
C7	218541396.01	10.0	1.18	P	1.0	${52.48}_{-25.10}^{+29.45}$	${0.00}_{-0.00}^{+1.21}$	${1.61}_{-0.39}^{+0.46}$	${67.3}_{-42.0}^{+46.4}$	1	Deep (∼2%); V-shaped;
C7	213920015.01	10.0	0.87	S	1.5	${1.04}_{-0.05}^{+0.09}$	${1.46}_{-0.12}^{+0.10}$	${0.50}_{-0.34}^{+0.33}$	${1.0}_{-0.1}^{+0.1}$	0	⋯
C7	218711655.01	11.3	1.46	S	1.2	${7.77}_{-3.24}^{+4.84}$	${0.00}_{-0.00}^{+0.00}$	${1.29}_{-0.11}^{+0.10}$	${12.3}_{-5.3}^{+7.9}$	0	2 stars in aper; possible blended EB
C7	218916923.01	11.5	0.93	S	28.4	${9.36}_{-0.03}^{+0.03}$	${4.94}_{-0.02}^{+0.02}$	${0.08}_{-0.06}^{+0.08}$	${9.5}_{-0.5}^{+0.6}$	0	⋯
C7	214611894.01	11.9	1.21	S	21.6	${15.57}_{-0.06}^{+0.13}$	${4.07}_{-0.02}^{+0.02}$	${0.11}_{-0.08}^{+0.10}$	${20.5}_{-2.1}^{+2.8}$	0	Deep (∼3%); flat-bottom
C7	213546283.01	12.0	1.10	S	9.8	${2.77}_{-0.12}^{+0.24}$	${2.98}_{-0.14}^{+0.15}$	${0.48}_{-0.33}^{+0.31}$	${3.3}_{-0.4}^{+0.6}$	0	⋯
C7	215938010.01	12.1	1.64	S	1.2	${6.91}_{-3.22}^{+5.16}$	${0.00}_{-0.00}^{+0.00}$	${1.28}_{-0.12}^{+0.12}$	${12.4}_{-5.9}^{+9.4}$	0	⋯
C7	216494238.01	12.3	1.45	S	19.9	${5.37}_{-0.08}^{+0.14}$	${8.19}_{-0.07}^{+0.12}$	${0.37}_{-0.25}^{+0.19}$	${8.5}_{-1.0}^{+1.2}$	0	⋯
C7	219388192.01	12.3	1.00	S	5.3	${8.79}_{-0.05}^{+0.09}$	${3.30}_{-0.02}^{+0.03}$	${0.16}_{-0.11}^{+0.15}$	${9.6}_{-0.5}^{+0.7}$	0	⋯
C7	218621322.01	12.4	1.00	S	11.6	${20.20}_{-15.46}^{+46.42}$	${3.90}_{-3.90}^{+0.73}$	${1.17}_{-0.21}^{+0.51}$	${21.9}_{-16.9}^{+50.5}$	0	Variable depth, poss. contam. nearby source%
C7	216892056.01	12.5	0.42	P	2.8	${4.13}_{-0.21}^{+0.43}$	${0.50}_{-0.03}^{+0.06}$	${0.46}_{-0.31}^{+0.32}$	${1.9}_{-0.8}^{+0.8}$	0	⋯
C7	217192839.01	12.6	0.70	S	16.0	${2.60}_{-0.15}^{+0.31}$	${3.07}_{-0.20}^{+0.22}$	${0.48}_{-0.32}^{+0.32}$	${2.0}_{-0.3}^{+0.4}$	0	⋯
C7	218131080.01	12.7	1.22	S	3.1	${5.87}_{-0.04}^{+0.08}$	${4.48}_{-0.02}^{+0.03}$	${0.21}_{-0.15}^{+0.18}$	${7.8}_{-0.6}^{+0.9}$	0	HAT-S-12 b
C7	216468514.01	12.7	1.73	S	3.3	${7.64}_{-0.18}^{+0.19}$	${2.98}_{-0.05}^{+0.06}$	${0.50}_{-0.21}^{+0.13}$	${14.4}_{-1.9}^{+2.2}$	0	⋯
C7	219420915.01	12.8	1.30	S	0.5	${18.38}_{-4.18}^{+7.76}$	${0.00}_{-0.00}^{+0.00}$	${1.31}_{-0.10}^{+0.11}$	${26.1}_{-6.6}^{+11.6}$	0	V-shaped
C7	216334329.01	12.9	1.54	S	28.1	${39.99}_{-26.41}^{+40.06}$	${3.62}_{-0.18}^{+0.20}$	${1.35}_{-0.28}^{+0.41}$	${67.3}_{-45.1}^{+68.1}$	0	⋯
C7	219256848.01	13.1	11.57	S	20.9	${46.86}_{-28.86}^{+35.73}$	${3.49}_{-0.18}^{+0.19}$	${1.39}_{-0.31}^{+0.37}$	${591.1}_{-367.2}^{+453.8}$	0	⋯
C7	217671466.01	13.1	1.94	S	1.9	${8.13}_{-0.04}^{+0.09}$	${3.56}_{-0.01}^{+0.02}$	${0.13}_{-0.09}^{+0.12}$	${17.2}_{-2.2}^{+2.9}$	0	Known HAT-S system
C7	215389654.01	13.2	0.97	S	23.5	${17.41}_{-0.11}^{+0.27}$	${8.58}_{-0.12}^{+0.11}$	${0.20}_{-0.14}^{+0.16}$	${18.4}_{-1.2}^{+1.8}$	0	Deep (∼4%); flat-bottom
C7	213840781.01	13.7	0.76	P	12.4	${43.63}_{-15.25}^{+26.02}$	${2.86}_{-0.12}^{+0.09}$	${1.03}_{-0.23}^{+0.31}$	${36.3}_{-19.3}^{+26.0}$	0	Deep (∼4%); V-shaped;
C7	216414930.01	13.7	0.89	P	3.6	${10.52}_{-0.03}^{+0.05}$	${4.42}_{-0.01}^{+0.01}$	${0.07}_{-0.05}^{+0.08}$	${10.2}_{-4.1}^{+4.1}$	0	⋯
C7	215358983.01	13.8	1.10	S	6.4	${12.79}_{-0.07}^{+0.13}$	${6.12}_{-0.04}^{+0.04}$	${0.11}_{-0.08}^{+0.11}$	${15.3}_{-1.4}^{+1.8}$	0	Deep (∼2%); flat-bottomed
C7	213703832.01	13.9	0.75	P	0.5	${4.09}_{-0.51}^{+0.96}$	${1.31}_{-1.31}^{+0.11}$	${0.69}_{-0.48}^{+0.46}$	${3.4}_{-1.4}^{+1.6}$	0	2 stars in aper; possible blended EB
C7	214741009.01	14.0	0.73	P	7.3	${41.56}_{-27.99}^{+38.08}$	${2.36}_{-0.15}^{+0.14}$	${1.29}_{-0.34}^{+0.40}$	${32.9}_{-25.8}^{+32.9}$	0	V-shaped
C7	217149884.01	14.2	0.90	P	16.7	${17.33}_{-0.13}^{+0.18}$	${5.53}_{-0.04}^{+0.04}$	${0.54}_{-0.03}^{+0.02}$	${17.0}_{-6.8}^{+6.8}$	0	Deep(∼3%); flat-bottomed;
C7	215969174.01	14.3	1.15	S	4.2	${10.69}_{-0.04}^{+0.07}$	${3.38}_{-0.01}^{+0.01}$	${0.11}_{-0.07}^{+0.10}$	${13.4}_{-1.1}^{+1.5}$	0	⋯
C7	215101303.01	14.9	0.84	P	15.2	${13.85}_{-0.20}^{+0.40}$	${3.55}_{-0.05}^{+0.07}$	${0.28}_{-0.19}^{+0.19}$	${12.7}_{-5.1}^{+5.1}$	0	Deep (∼3%); flat-bottomed;
C7	213951550.01	15.0	0.27	P	1.1	${57.27}_{-18.47}^{+26.37}$	${1.78}_{-0.08}^{+0.09}$	${1.11}_{-0.27}^{+0.32}$	${16.9}_{-8.7}^{+10.3}$	0	Deep (∼6%); V-shaped;
C7	217393088.01	15.3	1.54	S	1.3	${9.87}_{-0.08}^{+0.15}$	${3.13}_{-0.03}^{+0.03}$	${0.16}_{-0.11}^{+0.15}$	${16.6}_{-2.0}^{+2.4}$	0	⋯
C8	220542353.01	8.8	1.91	S	15.2	${37.44}_{-5.31}^{+9.47}$	${3.76}_{-0.01}^{+0.01}$	${1.06}_{-0.07}^{+0.11}$	${78.0}_{-15.1}^{+23.2}$	0	Deep (∼4%); V-shaped
C8	220383386.01	8.9	0.88	S	1.0	${1.83}_{-0.09}^{+0.22}$	${1.65}_{-0.08}^{+0.05}$	${0.49}_{-0.33}^{+0.33}$	${1.8}_{-0.1}^{+0.2}$	0	Multi;HD3167b; Vanderburg+16
C8	220383386.02	8.9	0.88	S	29.8	${3.12}_{-0.24}^{+0.51}$	${5.06}_{-0.17}^{+0.49}$	${0.63}_{-0.42}^{+0.27}$	${3.0}_{-0.3}^{+0.5}$	0	Multi;HD3167c; Vanderburg+16
C8	220666988.01	9.3	1.03	P	0.9	${37.34}_{-21.21}^{+28.78}$	${0.00}_{-0.00}^{+1.11}$	${1.50}_{-0.38}^{+0.45}$	${42.0}_{-29.2}^{+36.5}$	1	⋯
C8	220709978.01	9.4	0.96	S	15.4	${2.02}_{-0.10}^{+0.22}$	${4.39}_{-0.16}^{+0.17}$	${0.47}_{-0.32}^{+0.30}$	${2.1}_{-0.2}^{+0.3}$	0	⋯
C8	220303276.01	10.9	1.38	S	4.0	${8.03}_{-0.01}^{+0.01}$	${4.93}_{-0.01}^{+0.01}$	${0.04}_{-0.03}^{+0.04}$	${12.0}_{-0.9}^{+1.2}$	0	WASP-118b
C8	220725183.01	11.5	1.58	S	2.3	${30.02}_{-0.60}^{+0.72}$	${4.03}_{-0.00}^{+0.00}$	${0.88}_{-0.01}^{+0.01}$	${51.6}_{-6.2}^{+7.6}$	0	Deep (∼5%); V-shape
C8	220376054.01	11.6	1.29	S	8.6	${1.75}_{-0.09}^{+0.22}$	${3.73}_{-0.12}^{+0.14}$	${0.48}_{-0.33}^{+0.31}$	${2.5}_{-0.3}^{+0.5}$	0	⋯
C8	220621788.01	11.8	0.99	S	13.7	${2.13}_{-0.11}^{+0.25}$	${3.12}_{-0.10}^{+0.11}$	${0.47}_{-0.32}^{+0.30}$	${2.3}_{-0.2}^{+0.4}$	0	⋯
C8	220674823.01	12.0	0.97	S	0.6	${1.74}_{-0.08}^{+0.19}$	${1.45}_{-0.16}^{+0.07}$	${0.48}_{-0.33}^{+0.38}$	${1.8}_{-0.1}^{+0.3}$	0	Multi
C8	220674823.02	12.0	0.97	S	13.3	${2.65}_{-0.15}^{+0.36}$	${3.44}_{-0.16}^{+0.18}$	${0.47}_{-0.32}^{+0.32}$	${2.8}_{-0.2}^{+0.5}$	0	Multi
C8	220481411.01	12.1	0.71	S	2.2	${2.22}_{-0.12}^{+0.29}$	${1.83}_{-0.05}^{+0.05}$	${0.49}_{-0.33}^{+0.31}$	${1.7}_{-0.3}^{+0.3}$	0	⋯
C8	220294712.01	12.3	1.09	S	23.6	${2.51}_{-0.10}^{+0.24}$	${5.84}_{-0.17}^{+0.20}$	${0.46}_{-0.31}^{+0.29}$	${3.0}_{-0.3}^{+0.4}$	0	⋯
C8	220555384.01	12.4	0.55	P	4.3	${2.01}_{-0.15}^{+0.34}$	${1.17}_{-0.08}^{+0.08}$	${0.50}_{-0.34}^{+0.31}$	${1.2}_{-0.5}^{+0.5}$	0	V-shaped
C8	220321605.01	12.6	0.67	S	9.8	${3.57}_{-0.18}^{+0.40}$	${2.60}_{-0.05}^{+0.07}$	${0.45}_{-0.29}^{+0.26}$	${2.6}_{-0.4}^{+0.5}$	0	⋯
C8	220397060.01	12.8	0.84	S	12.1	${5.10}_{-0.11}^{+0.29}$	${8.51}_{-0.08}^{+0.11}$	${0.28}_{-0.19}^{+0.22}$	${4.7}_{-0.4}^{+5.1}$	0	⋯
C8	220187552.01	12.8	0.66	S	17.1	${45.14}_{-18.70}^{+28.57}$	${2.26}_{-0.03}^{+0.02}$	${1.20}_{-0.23}^{+0.31}$	${32.5}_{-14.3}^{+21.2}$	0	Deep (∼2%); V-shaped
C8	220431824.01	13.0	1.45	S	9.1	${11.55}_{-0.02}^{+0.04}$	${6.91}_{-0.01}^{+0.02}$	${0.07}_{-0.05}^{+0.07}$	${18.3}_{-3.1}^{+2.4}$	1	⋯
C8	220621087.01	13.4	0.45	S	3.8	${2.99}_{-0.24}^{+0.53}$	${1.54}_{-0.10}^{+0.11}$	${0.52}_{-0.35}^{+0.29}$	${1.5}_{-0.3}^{+0.4}$	0	⋯
C8	220504338.01	13.5	1.33	S	5.8	${8.65}_{-0.25}^{+0.21}$	${2.89}_{-0.06}^{+0.06}$	${0.58}_{-0.15}^{+0.08}$	${12.5}_{-1.6}^{+1.7}$	0	⋯
C8	220501947.01	13.5	0.73	S	4.0	${12.94}_{-0.02}^{+0.04}$	${2.48}_{-0.00}^{+0.01}$	${0.06}_{-0.04}^{+0.06}$	${10.3}_{-1.4}^{+1.4}$	0	Deep (∼2%); V-shape
C8	220258394.01	13.7	0.87	S	16.0	${20.49}_{-0.10}^{+0.13}$	${4.89}_{-0.02}^{+0.02}$	${0.70}_{-0.01}^{+0.01}$	${19.5}_{-0.8}^{+0.9}$	0	Deep (∼5%); V-shape
C8	220554210.01	13.7	0.93	S	4.2	${2.70}_{-0.14}^{+0.34}$	${2.73}_{-0.11}^{+0.11}$	${0.48}_{-0.32}^{+0.31}$	${2.7}_{-0.2}^{+0.4}$	0	⋯
C8	220436208.01	13.9	1.17	S	5.2	${3.37}_{-0.13}^{+0.34}$	${3.45}_{-0.09}^{+0.10}$	${0.44}_{-0.30}^{+0.30}$	${4.3}_{-0.5}^{+0.7}$	0	⋯
C8	220629489.01	14.1	0.86	S	1.9	${4.04}_{-0.18}^{+0.48}$	${1.75}_{-0.04}^{+0.06}$	${0.45}_{-0.31}^{+0.32}$	${3.8}_{-0.2}^{+0.5}$	0	⋯
C8	220565349.01	14.1	0.84	S	21.8	${21.77}_{-6.56}^{+23.83}$	${2.20}_{-0.21}^{+0.05}$	${0.91}_{-0.23}^{+0.31}$	${19.9}_{-6.0}^{+21.8}$	0	Deep (∼2%); V-shape
C8	220209578.01	14.4	0.89	S	8.9	${38.05}_{-20.38}^{+32.87}$	${2.95}_{-0.07}^{+0.06}$	${1.24}_{-0.25}^{+0.35}$	${36.9}_{-19.9}^{+32.0}$	0	V-shaped
C8	220522262.01	14.8	0.75	S	8.7	${9.89}_{-0.14}^{+0.33}$	${2.75}_{-0.03}^{+0.04}$	${0.23}_{-0.16}^{+0.21}$	${8.1}_{-1.1}^{+1.1}$	0	⋯
C8	220696233.01	15.5	0.35	P	28.7	${10.49}_{-0.38}^{+0.88}$	${2.99}_{-0.11}^{+0.15}$	${0.36}_{-0.25}^{+0.26}$	${4.0}_{-1.6}^{+1.6}$	0	⋯
C8	220336320.01	15.9	0.37	P	1.7	${52.53}_{-21.65}^{+25.35}$	${1.37}_{-0.02}^{+0.02}$	${1.17}_{-0.29}^{+0.29}$	${21.3}_{-12.2}^{+13.3}$	0	Deep (∼5%); V-shaped
C8	220448185.01	16.0	0.69	P	0.7	${22.87}_{-3.88}^{+42.13}$	${0.37}_{-0.06}^{+0.07}$	${0.67}_{-0.49}^{+0.66}$	${17.2}_{-7.5}^{+32.5}$	0	Half the reported period

Note. K2 objects of interest (K2OIs) identified through our systematic search of K2 photometry sorted by campaign and Kepler magnitude (${Kp}$). For each candidate we quote the highest quality stellar radius (${R}_{\star }$) computed from spectroscopy (S), where available, and from photometry (P), otherwise. Planet orbital period (P), planet-to-star radius ratio (${R}_{P}/{R}_{\star }$), time between first and last contact (${T}_{14}$), and impact parameter (b) are provided. The full precision and uncertainties on P and time of first transit T₀ are provided in the machine-readable version of this table. ${R}_{P}$ is the derived planetary radius given the light curve fit and stellar radius. We also include a summary of our eclipsing binary assessment: "EB" is a numerical code designating whether or the object of interest was a likely EB: 0—no obvious indication of EB, 1—secondary eclipse visible, 2—photometric variability that is phase-locked to the eclipse. Some additional comments on individual systems are provided.

A machine-readable version of the table is available.

Download table as:  DataTypeset images: 1 2 3

As a part of our team's standard follow-up efforts, we obtained optical spectra of 143 C5–C8 target stars using the HIgh Resolution Echelle Spectrometer (HIRES; Vogt et al. 1994) on the Keck I 10 m telescope. We gathered spectra for the purpose of improving host star parameters and to place limits on the presence of companion stars with small separations through searches for spectroscopic binaries (SB2s). We aimed to obtain a spectrum of every K2OI brighter than V = 14.0 mag. For G stars, this limit corresponds roughly to ${Kp}=13.6$ mag.

Table 2 lists the C5–C8 targets that we observed with HIRES, along with the results from our stellar characterization and search for spectroscopic binaries, which are described in Sections 3.2 and 3.3, respectively. We obtained HIRES spectra of 105/141 of the planet candidate host stars and for 8/16 of the likely EBs. In addition, we observed 30 other C5–C8 targets that we did not identify as candidates. These were typically observed because they were identified as planet candidates by other groups.

Table 2.  Stars with HIRES Spectra and Derived Parameters

Camp.	EPIC	${Kp}$	${T}_{\mathrm{eff}}$	$\mathrm{log}g$	$[\mathrm{Fe}/{\rm{H}}]$	$v\sin i$	${M}_{\star }$	${R}_{\star }$	SMa	SB2b	dispc
		(mag)	(K)	(cgs)	(dex)	(km s−1)	${M}_{\odot }$	${R}_{\odot }$
C5	211401787	9.7	6214	4.26	−0.04	8.4	${1.12}_{-0.05}^{+0.06}$	${1.25}_{-0.12}^{+0.17}$	1	1	PC
C5	211945201	10.1	6018	4.13	0.12	3.3	${1.17}_{-0.08}^{+0.10}$	${1.48}_{-0.19}^{+0.21}$	1	1	PC
C5	211990866	10.4	6180	4.51	0.32	13.6	${1.25}_{-0.04}^{+0.05}$	${1.23}_{-0.06}^{+0.09}$	1	1	PC
C5	212099230	10.5	5487	4.41	0.11	1.6	${0.93}_{-0.04}^{+0.04}$	${0.96}_{-0.06}^{+0.09}$	1	1	PC
C5	211594205	10.7	5240	4.69	−0.05	1.5	${0.83}_{-0.03}^{+0.03}$	${0.79}_{-0.03}^{+0.04}$	1	1	PC
C5	212110888	11.4	6008	4.16	0.01	5.9	${1.09}_{-0.06}^{+0.09}$	${1.38}_{-0.17}^{+0.19}$	1	4	PC
C5	211525389	11.7	5479	4.48	0.30	2.4	${1.00}_{-0.04}^{+0.04}$	${0.98}_{-0.05}^{+0.08}$	1	1	PC
C5	211359660	11.7	5177	4.62	0.12	2.0	${0.87}_{-0.03}^{+0.03}$	${0.82}_{-0.03}^{+0.04}$	1	1	PC
C5	212012119	11.8	4929	4.73	0.05	4.7	${0.80}_{-0.03}^{+0.03}$	${0.75}_{-0.02}^{+0.03}$	1	1	PC
C5	211491383	11.8	6141	4.21	−0.13	6.1	${1.06}_{-0.05}^{+0.06}$	${1.28}_{-0.15}^{+0.18}$	1	1	PC
C5	211391664	12.1	6074	4.12	−0.11	6.7	${1.05}_{-0.06}^{+0.08}$	${1.39}_{-0.17}^{+0.19}$	1	1	PC
C5	211736671	12.2	5554	3.93	0.40	2.6	${1.18}_{-0.09}^{+0.10}$	${1.77}_{-0.23}^{+0.27}$	1	1	PC
C5	211319617	12.4	5156	4.72	−0.60	0.8	${0.69}_{-0.03}^{+0.03}$	${0.65}_{-0.02}^{+0.02}$	1	1	PC
C5	211342524	12.4	6168	4.14	−0.19	7.8	${1.04}_{-0.06}^{+0.07}$	${1.36}_{-0.16}^{+0.19}$	1	5	PC
C5	211351816	12.4	4803	3.19	0.40	3.7	${1.45}_{-0.22}^{+0.25}$	${4.79}_{-0.67}^{+0.86}$	1	1	PC
C5	211800191	12.4	5919	4.53	−0.51	1.3	${0.85}_{-0.04}^{+0.04}$	${0.84}_{-0.04}^{+0.06}$	1	1	PC
C5	212006344	12.5	3925	⋯	0.43	⋯	⋯	${0.63}_{-0.10}^{+0.10}$	2	1	PC
C5	211355342	12.6	5606	4.32	0.27	1.9	${1.03}_{-0.05}^{+0.05}$	${1.11}_{-0.10}^{+0.14}$	1	1	PC
C5	212164470	12.7	5893	4.24	−0.04	2.8	${1.00}_{-0.05}^{+0.05}$	${1.19}_{-0.13}^{+0.16}$	1	1	PC
C5	211562654	12.8	5442	4.43	0.09	1.2	${0.91}_{-0.04}^{+0.04}$	${0.92}_{-0.06}^{+0.08}$	1	1	PC
C5	212008766	12.8	5038	4.68	−0.12	1.7	${0.77}_{-0.03}^{+0.03}$	${0.74}_{-0.03}^{+0.03}$	1	1	PC
C5	212157262	12.9	5459	4.48	0.25	1.6	${0.97}_{-0.04}^{+0.04}$	${0.96}_{-0.05}^{+0.07}$	1	1	PC
C5	212138198	12.9	5138	4.40	0.29	1.9	${0.90}_{-0.03}^{+0.03}$	${0.89}_{-0.05}^{+0.06}$	1	1	PC
C5	211818569	12.9	4526	⋯	0.04	⋯	⋯	${0.71}_{-0.10}^{+0.10}$	2	1	PC
C5	211439059	13.1	5481	4.72	−0.01	4.3	${0.90}_{-0.04}^{+0.03}$	${0.84}_{-0.03}^{+0.04}$	1	4	PC
C5	211919004	13.1	5149	4.51	0.22	1.4	${0.89}_{-0.03}^{+0.04}$	${0.86}_{-0.04}^{+0.05}$	1	1	PC
C5	211442297	13.2	5596	4.55	−0.12	0.9	${0.89}_{-0.04}^{+0.04}$	${0.86}_{-0.04}^{+0.06}$	1	1	PC
C5	211490999	13.4	5488	4.42	−0.02	0.9	${0.89}_{-0.04}^{+0.04}$	${0.91}_{-0.06}^{+0.07}$	1	1	PC
C5	211529065	13.4	4915	4.53	0.31	3.5	${0.86}_{-0.03}^{+0.03}$	${0.82}_{-0.03}^{+0.03}$	1	1	PC
C5	211413752	13.5	5025	4.61	0.04	1.5	${0.81}_{-0.03}^{+0.03}$	${0.78}_{-0.03}^{+0.03}$	1	1	PC
C5	211713099	13.6	5532	4.37	−0.35	0.6	${0.80}_{-0.03}^{+0.03}$	${0.83}_{-0.05}^{+0.06}$	1	1	PC
C5	211816003	13.7	5313	4.61	−0.34	0.3	${0.77}_{-0.03}^{+0.03}$	${0.74}_{-0.03}^{+0.03}$	1	1	PC
C5	211331236	13.9	3687	⋯	−0.17	⋯	⋯	${0.52}_{-0.10}^{+0.10}$	2	1	PC
C5	212069861	14.1	3926	⋯	0.18	⋯	⋯	${0.64}_{-0.10}^{+0.10}$	2	1	PC
C5	211929937	14.2	5230	4.54	0.10	0.6	${0.87}_{-0.03}^{+0.03}$	${0.84}_{-0.04}^{+0.04}$	1	1	PC
C5	211418729	14.3	5020	4.33	0.45	2.7	${0.90}_{-0.03}^{+0.03}$	${0.90}_{-0.05}^{+0.06}$	1	1	PC
C5	211578235	14.3	5491	4.25	−0.16	4.1	${0.85}_{-0.03}^{+0.04}$	${0.94}_{-0.08}^{+0.14}$	1	5	PC
C5	211399359	14.4	4972	4.64	0.04	3.2	${0.80}_{-0.03}^{+0.03}$	${0.77}_{-0.03}^{+0.03}$	1	1	PC
C5	211978865	14.4	6519	4.33	−0.19	18.7	${1.15}_{-0.05}^{+0.05}$	${1.21}_{-0.08}^{+0.13}$	1	3	PC
C5	212130773	14.5	4949	4.55	0.04	1.8	${0.80}_{-0.03}^{+0.03}$	${0.77}_{-0.03}^{+0.03}$	1	1	PC
C5	211770795	14.5	4454	⋯	0.08	⋯	⋯	${0.71}_{-0.10}^{+0.10}$	2	1	PC
C5	212154564	15.1	⋯	⋯	⋯	65.7	⋯	⋯	0	1	PC
C5	211916756	15.5	⋯	⋯	⋯	252.7	⋯	⋯	0	1	PC
C6	212357477	10.2	5741	4.46	0.12	2.4	${1.02}_{-0.05}^{+0.05}$	${1.01}_{-0.06}^{+0.08}$	1	1	PC
C6	212703473	10.7	5816	4.38	0.19	5.2	${1.08}_{-0.05}^{+0.05}$	${1.11}_{-0.08}^{+0.12}$	1	3	PC
C6	212803289	11.0	6102	3.96	0.20	10.0	${1.40}_{-0.12}^{+0.13}$	${1.98}_{-0.27}^{+0.31}$	1	1	PC
C6	212782836	11.6	5418	4.48	−0.42	1.1	${0.76}_{-0.03}^{+0.03}$	${0.76}_{-0.03}^{+0.04}$	1	1	PC
C6	212521166	11.6	4895	4.64	−0.24	1.9	${0.71}_{-0.03}^{+0.03}$	${0.68}_{-0.02}^{+0.02}$	1	1	PC
C6	212586030	11.7	4865	3.37	0.38	3.5	${1.41}_{-0.19}^{+0.21}$	${3.83}_{-0.52}^{+0.62}$	1	1	PC
C6	212300977	11.7	5965	4.34	0.00	2.7	${1.04}_{-0.05}^{+0.05}$	${1.11}_{-0.09}^{+0.13}$	1	1	PC
C6	212779596	11.9	4507	⋯	−0.04	⋯	⋯	${0.70}_{-0.10}^{+0.10}$	2	1	PC
C6	212735333	12.0	5660	4.50	0.09	1.3	${0.98}_{-0.05}^{+0.04}$	${0.96}_{-0.05}^{+0.07}$	1	1	PC
C6	212587672	12.2	5948	4.49	−0.21	2.1	${0.95}_{-0.04}^{+0.04}$	${0.95}_{-0.05}^{+0.08}$	1	1	PC
C6	212697709	12.2	5719	4.28	0.28	1.6	${1.09}_{-0.05}^{+0.06}$	${1.20}_{-0.13}^{+0.17}$	1	1	PC
C6	212394689	12.2	5456	4.50	−0.01	1.6	${0.89}_{-0.04}^{+0.04}$	${0.88}_{-0.04}^{+0.06}$	1	1	PC
C6	212689874	12.3	5644	4.36	−0.12	1.7	${0.88}_{-0.04}^{+0.04}$	${0.95}_{-0.07}^{+0.10}$	1	1	PC
C6	212435047	12.4	5750	4.29	0.01	2.0	${0.96}_{-0.05}^{+0.05}$	${1.10}_{-0.11}^{+0.14}$	1	1	PC
C6	212460519	12.4	4226	⋯	−0.17	⋯	⋯	${0.66}_{-0.10}^{+0.10}$	2	1	PC
C6	212428509	12.5	5697	4.25	−0.42	1.7	${0.81}_{-0.03}^{+0.03}$	${0.94}_{-0.08}^{+0.15}$	1	1	PC
C6	212585579	12.6	5931	4.35	−0.00	2.3	${1.02}_{-0.05}^{+0.05}$	${1.09}_{-0.09}^{+0.12}$	1	1	PC
C7	213920015	10.0	5682	4.60	−0.12	2.1	${0.91}_{-0.04}^{+0.04}$	${0.87}_{-0.04}^{+0.05}$	1	1	PC
C7	218711655	11.3	6404	4.18	0.08	6.9	${1.29}_{-0.06}^{+0.08}$	${1.46}_{-0.16}^{+0.22}$	1	1	PC
C7	218916923	11.5	5393	4.57	0.29	1.7	${0.97}_{-0.04}^{+0.04}$	${0.93}_{-0.04}^{+0.06}$	1	1	PC
C7	214611894	11.9	6072	4.27	−0.02	4.8	${1.07}_{-0.05}^{+0.06}$	${1.21}_{-0.12}^{+0.17}$	1	1	PC
C7	213546283	12.0	5685	4.23	−0.14	0.1	${0.89}_{-0.03}^{+0.04}$	${1.10}_{-0.12}^{+0.17}$	1	1	PC
C7	215938010	12.1	6027	4.03	0.08	3.5	${1.20}_{-0.09}^{+0.11}$	${1.64}_{-0.20}^{+0.24}$	1	1	PC
C7	216494238	12.3	5741	4.14	0.35	2.5	${1.17}_{-0.08}^{+0.10}$	${1.45}_{-0.18}^{+0.20}$	1	1	PC
C7	219388192	12.3	5781	4.54	0.12	4.2	${1.03}_{-0.04}^{+0.05}$	${1.00}_{-0.05}^{+0.07}$	1	1	PC
C7	218621322	12.4	5675	4.26	−0.27	0.3	${0.85}_{-0.03}^{+0.03}$	${1.00}_{-0.10}^{+0.16}$	1	1	PC
C7	216892056	12.5	⋯	⋯	⋯	64.1	⋯	⋯	0	1	PC
C7	217192839	12.6	4541	⋯	−0.28	⋯	⋯	${0.70}_{-0.10}^{+0.10}$	2	1	PC
C7	218131080	12.7	6394	4.32	−0.09	4.5	${1.15}_{-0.05}^{+0.05}$	${1.22}_{-0.09}^{+0.14}$	1	1	PC
C7	216468514	12.7	6038	4.02	0.16	4.7	${1.28}_{-0.11}^{+0.12}$	${1.73}_{-0.23}^{+0.26}$	1	1	PC
C7	219420915	12.8	5815	4.24	0.32	2.9	${1.15}_{-0.06}^{+0.08}$	${1.30}_{-0.14}^{+0.18}$	1	1	PC
C7	216334329	12.9	5830	4.05	0.13	2.3	${1.12}_{-0.07}^{+0.10}$	${1.54}_{-0.18}^{+0.23}$	1	1	PC
C7	219256848	13.1	4530	2.57	0.32	4.2	${1.76}_{-0.35}^{+0.44}$	${11.57}_{-0.94}^{+1.03}$	1	1	PC
C7	217671466	13.1	5576	3.87	0.43	3.7	${1.25}_{-0.10}^{+0.12}$	${1.94}_{-0.25}^{+0.33}$	1	1	PC
C7	215389654	13.2	5416	4.41	0.24	1.2	${0.96}_{-0.04}^{+0.04}$	${0.97}_{-0.06}^{+0.09}$	1	1	PC
C7	213840781	13.7	⋯	⋯	⋯	137.1	⋯	⋯	0	5	PC
C7	215358983	13.8	6135	4.31	−0.24	11.2	${0.99}_{-0.05}^{+0.05}$	${1.10}_{-0.10}^{+0.13}$	1	1	PC
C7	215969174	14.3	5929	4.35	0.16	3.8	${1.11}_{-0.05}^{+0.05}$	${1.15}_{-0.09}^{+0.13}$	1	1	PC
C7	217393088	15.3	5839	4.09	0.25	5.1	${1.19}_{-0.08}^{+0.11}$	${1.54}_{-0.19}^{+0.22}$	1	1	PC
C8	220542353	8.8	6414	3.86	−0.45	8.5	${1.12}_{-0.07}^{+0.09}$	${1.91}_{-0.25}^{+0.30}$	1	5	PC
C8	220383386	8.9	5305	4.47	0.11	0.0	${0.89}_{-0.03}^{+0.04}$	${0.88}_{-0.04}^{+0.06}$	1	1	PC
C8	220709978	9.4	5963	4.44	−0.25	2.6	${0.93}_{-0.04}^{+0.04}$	${0.96}_{-0.06}^{+0.09}$	1	1	PC
C8	220303276	10.9	6446	4.29	0.15	10.7	${1.31}_{-0.05}^{+0.06}$	${1.38}_{-0.10}^{+0.14}$	1	3	PC
C8	220725183	11.5	6188	4.05	−0.07	18.8	${1.16}_{-0.08}^{+0.10}$	${1.58}_{-0.19}^{+0.23}$	1	5	PC
C8	220376054	11.6	5863	4.19	0.06	2.5	${1.05}_{-0.06}^{+0.07}$	${1.29}_{-0.15}^{+0.18}$	1	1	PC
C8	220621788	11.8	5652	4.40	0.05	0.9	${0.95}_{-0.04}^{+0.05}$	${0.99}_{-0.07}^{+0.10}$	1	1	PC
C8	220674823	12.0	5547	4.44	0.14	1.4	${0.96}_{-0.04}^{+0.05}$	${0.97}_{-0.06}^{+0.09}$	1	1	PC
C8	220481411	12.1	4495	⋯	0.08	⋯	⋯	${0.71}_{-0.10}^{+0.10}$	2	1	PC
C8	220294712	12.3	6100	4.36	−0.11	4.3	${1.04}_{-0.05}^{+0.05}$	${1.09}_{-0.08}^{+0.12}$	1	1	PC
C8	220321605	12.6	4159	⋯	−0.01	⋯	⋯	${0.67}_{-0.10}^{+0.10}$	2	1	PC
C8	220397060	12.8	5221	4.16	−0.21	3.6	${0.81}_{-0.04}^{+0.11}$	${0.84}_{-0.07}^{+0.91}$	1	5	PC
C8	220187552	12.8	4197	⋯	−0.02	⋯	⋯	${0.66}_{-0.10}^{+0.10}$	2	4	PC
C8	220621087	13.4	3633	⋯	−0.28	⋯	⋯	${0.45}_{-0.10}^{+0.10}$	2	1	PC
C8	220504338	13.5	5648	4.18	0.30	2.0	${1.08}_{-0.06}^{+0.08}$	${1.33}_{-0.16}^{+0.18}$	1	1	PC
C8	220501947	13.5	4398	⋯	0.17	⋯	⋯	${0.73}_{-0.10}^{+0.10}$	2	1	PC
C8	220258394	13.7	5601	4.81	0.03	3.9	${0.94}_{-0.03}^{+0.04}$	${0.87}_{-0.04}^{+0.04}$	1	5	PC
C8	220554210	13.7	5440	4.47	0.16	1.2	${0.94}_{-0.04}^{+0.04}$	${0.93}_{-0.05}^{+0.07}$	1	1	PC
C8	220436208	13.9	5645	4.29	0.28	2.3	${1.05}_{-0.05}^{+0.06}$	${1.17}_{-0.12}^{+0.16}$	1	1	PC
C8	220629489	14.1	5050	4.47	0.32	2.7	${0.88}_{-0.03}^{+0.04}$	${0.86}_{-0.03}^{+0.05}$	1	1	PC
C8	220565349	14.1	5453	4.61	−0.06	3.2	${0.87}_{-0.04}^{+0.04}$	${0.84}_{-0.03}^{+0.05}$	1	1	PC
C8	220209578	14.4	5757	4.47	−0.26	3.8	${0.87}_{-0.04}^{+0.04}$	${0.89}_{-0.05}^{+0.07}$	1	1	PC
C8	220522262	14.8	4616	⋯	0.15	⋯	⋯	${0.75}_{-0.10}^{+0.10}$	2	1	PC
C6	212727070	9.4	⋯	⋯	⋯	20.1	⋯	⋯	0	3	EB
C6	212351868	10.2	⋯	⋯	⋯	46.0	⋯	⋯	0	3	EB
C6	212773309	11.4	5009	4.42	0.36	9.1	${0.88}_{-0.03}^{+0.03}$	${0.86}_{-0.04}^{+0.05}$	1	1	EB
C7	218541396	10.0	⋯	⋯	⋯	21.2	⋯	⋯	0	3	EB
C8	220666988	9.3	⋯	⋯	⋯	32.6	⋯	⋯	0	1	EB
C8	220431824	13.0	5434	4.10	0.04	8.6	${0.95}_{-0.03}^{+0.05}$	${1.45}_{-0.24}^{+0.19}$	1	1	EB
C5	212066407	12.2	5857	4.31	−0.12	2.4	${0.94}_{-0.05}^{+0.05}$	${1.07}_{-0.10}^{+0.13}$	1	1	EB
C6	212651120	10.5	⋯	⋯	⋯	128.0	⋯	⋯	0	3	EB
C5	211993818	7.2	5228	3.06	−0.08	6.1	${2.09}_{-0.26}^{+0.21}$	${8.03}_{-2.32}^{+1.18}$	1	5	Other
C5	211311380	9.1	6251	4.28	0.00	5.7	${1.15}_{-0.05}^{+0.06}$	${1.25}_{-0.11}^{+0.16}$	1	1	Other
C5	211886472	11.1	6458	4.32	−0.04	8.0	${1.20}_{-0.05}^{+0.05}$	${1.26}_{-0.08}^{+0.13}$	1	1	Other
C5	211987231	11.7	6103	4.44	−0.04	5.5	${1.07}_{-0.05}^{+0.05}$	${1.08}_{-0.07}^{+0.09}$	1	4	Other
C5	211941472	11.8	5767	4.06	−0.00	2.6	${1.01}_{-0.06}^{+0.07}$	${1.45}_{-0.18}^{+0.22}$	1	1	Other
C5	211770696	12.3	5786	4.22	−0.31	1.5	${0.86}_{-0.03}^{+0.04}$	${1.09}_{-0.13}^{+0.18}$	1	1	Other
C5	211645912	12.5	5899	4.60	0.01	4.2	${1.02}_{-0.04}^{+0.04}$	${0.98}_{-0.05}^{+0.06}$	1	1	Other
C5	211743874	12.5	6182	4.32	0.12	6.0	${1.18}_{-0.05}^{+0.05}$	${1.24}_{-0.10}^{+0.13}$	1	1	Other
C5	212006318	12.9	5822	4.11	0.03	2.1	${1.03}_{-0.06}^{+0.07}$	${1.39}_{-0.17}^{+0.20}$	1	1	Other
C5	211978909	13.2	5112	3.70	−0.33	1.9	${0.96}_{-0.07}^{+0.14}$	${2.41}_{-0.28}^{+0.39}$	1	1	Other
C5	211825866	13.8	5279	4.74	−0.19	0.9	${0.80}_{-0.03}^{+0.03}$	${0.76}_{-0.02}^{+0.03}$	1	1	Other
C6	212473154	9.0	4740	2.68	0.01	4.3	${1.85}_{-0.37}^{+0.50}$	${10.92}_{-1.74}^{+0.90}$	1	1	Other
C6	212768333	11.0	5242	4.70	0.05	5.8	${0.86}_{-0.03}^{+0.03}$	${0.81}_{-0.03}^{+0.04}$	1	1	Other
C6	212705192	11.7	⋯	⋯	⋯	20.8	⋯	⋯	0	5	Other
C6	212658818	12.1	5464	4.37	0.36	2.1	${1.01}_{-0.04}^{+0.04}$	${1.05}_{-0.08}^{+0.12}$	1	1	Other
C6	212393193	12.1	6252	4.51	0.01	9.3	${1.14}_{-0.05}^{+0.04}$	${1.12}_{-0.06}^{+0.08}$	1	1	Other
C7	214889247	9.7	5891	4.50	0.18	3.4	${1.09}_{-0.05}^{+0.05}$	${1.07}_{-0.06}^{+0.08}$	1	1	Other
C7	218155470	9.8	7030	2.12	−1.54	18.5	⋯	⋯	1	2	Other
C7	213743957	11.4	⋯	⋯	⋯	62.5	⋯	⋯	0	3	Other
C7	215346008	11.8	4378	2.36	−0.02	5.1	${1.23}_{-0.23}^{+0.47}$	${12.34}_{-1.61}^{+2.96}$	1	1	Other
C7	216050437	12.3	⋯	⋯	⋯	38.5	⋯	⋯	0	5	Other
C7	218212249	13.1	4379	2.25	−0.54	5.1	${1.01}_{-0.13}^{+0.33}$	${13.91}_{-1.91}^{+2.79}$	1	1	Other
C8	220503133	6.5	4776	2.68	0.03	4.5	${1.97}_{-0.32}^{+0.58}$	${10.99}_{-1.47}^{+1.25}$	1	1	Other
C8	220492184	8.0	6694	3.34	−0.81	15.3	${1.64}_{-0.12}^{+0.15}$	${4.12}_{-0.57}^{+0.73}$	1	5	Other
C8	220493203	9.9	5054	2.92	−0.46	3.9	${1.70}_{-0.56}^{+0.39}$	${7.88}_{-2.21}^{+1.21}$	1	1	Other
C8	220643470	10.8	4432	2.34	−0.69	4.2	${0.96}_{-0.11}^{+0.24}$	${12.19}_{-1.39}^{+2.16}$	1	1	Other
C8	220487418	12.1	6029	4.24	0.05	4.5	${1.10}_{-0.06}^{+0.07}$	${1.27}_{-0.14}^{+0.19}$	1	1	Other
C8	220209709	12.2	5911	4.14	0.02	1.6	${1.06}_{-0.06}^{+0.08}$	${1.37}_{-0.17}^{+0.19}$	1	1	Other
C8	220650439	12.2	5676	4.38	0.13	1.3	${0.99}_{-0.05}^{+0.05}$	${1.04}_{-0.08}^{+0.11}$	1	1	Other
C8	220204960	12.7	⋯	⋯	⋯	97.6	⋯	⋯	0	4	Other

Notes. The 143 stars observed by Keck/HIRES, their stellar parameters, and SB2 status (if available). We derived stellar properties using two complimentary techniques: SpecMatch-Syn (Petigura 2015) and SpecMatch-Emp (Yee et al. 2017). For stars cooler than 4700 K, we used SpecMatch-Syn to compute ${T}_{\mathrm{eff}}$, $\mathrm{log}g$, and $[\mathrm{Fe}/{\rm{H}}]$, which were converted into ${R}_{\star }$ and ${M}_{\star }$ using the isochrones package (Morton 2015). For stars cooler than 4700 K, we used SpecMatch-Emp to compute ${T}_{\mathrm{eff}}$, ${R}_{\star }$, ${M}_{\star }$, and $[\mathrm{Fe}/{\rm{H}}]$. We also searched for SB2s using the methodology of Kolbl et al. (2015).

^aSource of spectroscopic properties: 0—Spectroscopic properties are not reliable (13 stars). 1—Parameters from SpecMatch-Syn (116 stars). 2—Parameters from SpecMatch-Emp (14 stars). The spectroscopic parameters are not reliable if ${T}_{\mathrm{eff}}$ > 6500 K or $v\sin i$ > 20 km s⁻¹. SpecMatch-Syn achieves precisions of 60 K, 0.10 dex, 0.04 dex, and 1 km s⁻¹ in ${T}_{\mathrm{eff}}$, $\mathrm{log}g$, $[\mathrm{Fe}/{\rm{H}}]$, and $v\sin i$. SpecMatch-Emp achieves precisions of 70 K in ${T}_{\mathrm{eff}}$, 10% in ${R}_{\star }$, and 0.12 dex in $[\mathrm{Fe}/{\rm{H}}]$. ^bReaMatch classification codes: 1—No detection, 2—Star is unfit for ReaMatch: Teff below 3500 K or above 6500 K, 3—Star is unfit for ReaMatch: $v\sin i$ above 10 km s⁻¹; 4—Ambiguous detection; 5—Obvious detection. ^cFlag indicating whether the target is a planet candidate (PC), eclipsing binary (EB), or is not included in our candidate list (Other).

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