The TESS-Keck Survey or TKS is an exoplanet search project that uses the Keck I and the Automated Planet Finder (APF) to conduct ground-based follow-up of planet candidates discovered by the Transiting Exoplanet Survey Satellite. The TKS aims to measure the mass for about 100 exoplanets and has been awarded some of the largest time allocations in the histories of Keck I and APF. The program has four main science themes:
the bulk compositions of small planets dynamical temperatures and system architectures a larger, more refined sample for future atmospheric studies planets orbiting evolved stars
List of discoveries +NameClassRadius ()Mass ()Bulk density (g/cm3)Orbital period (days)Discovery yearNoteReferenceHD 332231 bwarm sub-Saturn9.74476.320.46418.712020TOI-561 bsuper-earth1.453.25.50.442021old metal-poor host starTOI-561 csub-Neptune2.906.51.610.82021old metal-poor host starTOI-561 dsub-Neptune2.322.41.316.42021metal-poor host starHD 63935 bsub-Neptune2.9910.82.29.062021HD 63935 csub-Neptune2.9011.12.521.402021HIP-97166 bsub-Neptune2.7205.310.32021eccentric orbitHIP-97166 csub-Neptune1016.82021eccentric orbitTOI-2180 bgiant planet11.3890.43.32260.82022originally found by citizen scientists of Planet Hunters, planet with eccentric orbitHD 191939 ewarm Saturn108101.52022study also announced the mass of the other planetsHD 191939 fgiant planet≥6301700-72002022candidateTOI-1444 bsuper-earth1.43.870.472021TOI-1444 c11.8162021candidateTOI-1246 e>25.693.82022candidate, study also announced the mass of the other planetsTOI-1272 bhot Neptune4.1251.93.32022eccentric orbitTOI-1272 c278.72022TOI-1669 cgiant planet1915012022planet b is a close-in small planet ()TOI-1694 cgiant planet2953932022planet b is a close-in small planet ()HIP 8152 b (TOI-266)sub-Neptune2.67.82.510.752023HIP 8152 csub-Neptune2.59.43.419.612023HD 42813 b (TOI-469)sub-Neptune3.45.80.813.632023star is metal-rich, planet has relative low densityHD 25463 b (TOI-554)sub-Neptune2.68.52.67.052023HD 25463 csuper-Earth1.5<4.1<7.13.042023TOI-669 bhot sub-Neptune2.69.83.03.952023HD 135694 b (TOI-1247)warm sub-Neptune2.515.72.015.922023HD 6061 b (TOI-1473)hot sub-Neptune2.4510.84.05.252023TOI-1736 bsub-Neptune3.111.92.37.072023star is a subgiantTOI-1736 ctemperature super-Jovian>2477571.32023not transiting, in a moderately eccentric orbitTOI-1386 bwarm sub-Saturn6.05471.1625.842024orbits a solar analogueTOI-1386 c>98227.62024not transitingTOI-1347 bultra-short period planet1.811.19.90.852024possible high molecular weight atmosphereTOI-1347 c1.6<6.4<4.14.842024TOI-329 bNeptune size4.7240.82.135.702024old subgiant host star; moderate eccentric orbit e=0.39HD 39688 b (TOI-480)Earth-density2.6915.74.426.862024TOI-603 b7.9347.50.5216.172024subgiant host starTOI-1199 bgiant planet10.6069.40.323.672024TOI-1294 bSaturn-sized9.1962.20.443.912024massive metal-rich host starTOI-1294 c148.3160.12024not transitingTOI-1439 bNeptune-sized4.1538.42.9427.642024metal-rich subgiant host starTOI-1605 bJupiter-sized10.34221.38.702024solar-like metallicity host star; eccentric orbit e=0.28TOI-1828 bhot Jupiter8.6258.50.509.092024subgiant host star; eccentric orbit e=0.31HD 148193 b (TOI-1836)8.3828.40.2720.382024young and hot subgiant host starTOI-1885 bgiant planet13.66516.41.126.542024young and hot host starHD 83342 b (TOI-1898)warm Jupiter9.74127.50.7645.522024CTOI of Planet Hunters: TESS; highly eccentric orbit e=0.48TOI-2019 b5.6634.61.0515.342024cool metal-rich subgiant host starTOI-1736 c2477571.32024eccentric orbit e=0.37TOI-1751 bsub-Neptune2.7714.53.637.472024slightly evolved solar-type metal-poor starTOI-1824 bsub-Neptune2.6318.55.622.812024a superdense sub-NeptuneHD 154840 b (TOI-1437)sub-Neptune2.249.618.842024 Follow-up works by TKS studied the already discovered planets TOI-1726 c and WASP-107b. An additional 15 newly confirmed planets are presented in a work from 2024.
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