# TESS Program G022243 Title: New Masses For The Kepler Circumbinary Planets PI: Welsh, William - San Diego State University Type: SMALL Summary: Among the most exciting results from the Kepler Mission were the discovery of the transiting circumbinary planets. While few in number, these "Tatooine" planets captivated the world's imagination. But the circumbinary planets are much more than just curiosities - they have the most accurately measured radii of any exoplanet and they place stringent constraints on planet formation and migration theory. In this proposed research we will use 2-minute cadence TESS data to measure the stellar eclipses times with a precision of ~15 seconds. Using these eclipse times we can refine, or in some cases for the first time, measure the masses of the Kepler circumbinary planet. # Sector 014 targets observed (20) 169819915,297.6291,41.6415,14.28,G022243 170344769,298.1501,40.6562,13.11,G022243;G022053;G022204 170348142,298.2151,39.9551,13.31,G022243;G022053;G022204 137347517,291.9775,37.5324,13.18,G022243;G022166 120764848,286.1542,39.0656,12.04,G022243;G022062;G022204 122446960,290.552,40.235,13.06,G022243 158316612,286.8303,42.2791,13.43,G022243;G022053;G022204 159716878,291.357,42.4936,14.15,G022243 164457525,283.2413,46.3785,13.03,G022243;G022053;G022204 164886585,285.1671,41.9669,13.58,G022243;G022204 164890208,285.284,44.7692,14.58,G022243;G022204 270704947,293.8413,42.9481,14.42,G022243 271040768,294.497,46.6897,15.21,G022243;G022053;G022204 271548206,295.2979,46.9204,14.67,G022243;G022053;G022204 272369124,296.4358,44.6415,14.34,G022243;G022053;G022204 272489351,296.4936,44.0523,15.33,G022243 273582296,297.8944,45.2112,14.05,G022243;G022204 298969838,288.5107,51.1624,14.96,G022243;G022053;G022204 299096355,289.0759,51.7572,10.94,G022243;G022253;G022062;G022053;G022204 416635004,299.0783,48.0219,13.03,G022243;G022204 # Sector 015 targets observed (13) 170348142,298.2151,39.9551,13.31,G022243;G022053;G022204 298969838,288.5107,51.1624,14.96,G022243;G022053;G022204 299096355,289.0759,51.7572,10.94,G022243;G022253;G022062;G022053;G022204 159719243,291.3199,43.5955,10.38,G022243;G022062;G022204 169819915,297.6291,41.6415,14.28,G022243 170344769,298.1501,40.6562,13.11,G022243;G022053;G022204 270704947,293.8413,42.9481,14.42,G022243 271040768,294.497,46.6897,15.21,G022243;G022053;G022204 271548206,295.2979,46.9204,14.67,G022243;G022053;G022204 272369124,296.4358,44.6415,14.34,G022243;G022053;G022204 272489351,296.4936,44.0523,15.33,G022243 273582296,297.8944,45.2112,14.05,G022243;G022204 416635004,299.0783,48.0219,13.03,G022243;G022204 # Sector 026 targets observed (5) 164457525,283.2413,46.3785,13.03,G022243;G022053;G022204 164886585,285.1671,41.9669,13.58,G022243;G022204 164890208,285.284,44.7692,14.58,G022243;G022204 298969838,288.5107,51.1624,14.96,G022243;G022053;G022204 299096355,289.0759,51.7572,10.94,G022243;G022253;G022062;G022053;G022204