# TESS Program G09142

Title: Hunting For Transit Orbital Variations With TESS

PI: Turner, Jake - Cornell University

Type: LARGE

Summary: Transit timing variations (TTVs) of exoplanets may indicate a decaying planetary orbit or additional unseen bodies in the system, and TESS is an ideal observatory to search for TTVs. Measurements of orbital decay will help us understand the evolution of the hot Jupiter population but only one hot Jupiter is observed to have a decaying orbit. We propose to search for TTVs in all known hot Jupiter and multi-planet systems observable by TESS in Cycle 9 in high-cadence mode. We will also use TESS to update the ephemerides of all planets and planetary candidates. These observations will greatly inform theoretical models of orbital decay, provide constraints on the evolution of multi-planet systems, and yield updated ephemerides to aid in follow-up atmospheric observations.


# Sector 108 targets observed (2 min: 15, 20 s: 15)
166806344,58.264,-30.8047,13.74,G09142;20SECONDTARGET
44737596,60.9494,-25.4089,13.82,G09142;G09031;20SECONDTARGET
44898913,64.1317,-28.3166,14.27,G09142;G09031;G09123;20SECONDTARGET
1309019,72.9006,-34.2263,13.77,G09142;20SECONDTARGET
1333933,73.3553,-32.8003,13.96,G09142;20SECONDTARGET
1528696,75.7953,-30.3995,13.17,G09058;G09142;20SECONDTARGET
170849515,70.3397,-32.3205,14.86,G09142;G09031;20SECONDTARGET
178879588,67.4186,-28.1972,13.26,G09058;G09142;20SECONDTARGET
192826603,82.7141,-36.6311,13.91,G09142;G09031;20SECONDTARGET
32499655,84.3267,-27.9726,13.54,G09142;G09031;20SECONDTARGET
33521996,88.1468,-19.0316,13.34,G09142;G09031;20SECONDTARGET
37348844,91.8723,-25.5949,13.61,G09142;G09010;20SECONDTARGET
124778445,94.4447,-35.7063,13.98,G09142;20SECONDTARGET
52689469,101.3948,-33.8817,13.64,G09142;20SECONDTARGET
98283926,108.4524,-33.4374,13.15,G09058;G09142;20SECONDTARGET

# Sector 109 targets observed (2 min: 11, 20 s: 11)
439867639,43.3163,0.0523,13.13,G09142;G09123;G09010;20SECONDTARGET
1528696,75.7953,-30.3995,13.17,G09058;G09142;20SECONDTARGET
178879588,67.4186,-28.1972,13.26,G09058;G09142;20SECONDTARGET
33521996,88.1468,-19.0316,13.34,G09142;G09031;20SECONDTARGET
95057860,90.4748,-13.4614,13.5,G09142;G09031;20SECONDTARGET
124778445,94.4447,-35.7063,13.98,G09142;20SECONDTARGET
32499655,84.3267,-27.9726,13.54,G09142;G09031;20SECONDTARGET
37348844,91.8723,-25.5949,13.61,G09142;G09010;20SECONDTARGET
52689469,101.3948,-33.8817,13.64,G09142;20SECONDTARGET
98283926,108.4524,-33.4374,13.15,G09058;G09142;20SECONDTARGET
218795833,124.6066,-19.6627,14.44,G09142;G09031;20SECONDTARGET