# TESS Program G08047 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 8 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 097 targets observed (2 min: 8, 20 s: 4) 153065527,49.2628,-42.2453,11.28,G08140;G08041;G08047;G08047;20SECONDTARGET 404518509,51.6403,-43.6137,8.6,G08047;20SECONDTARGET 166853853,40.6432,-50.7987,4.88,G08047;G08195;20SECONDTARGET 219344917,74.7373,-50.6278,9.76,G08047 271971130,113.8532,-73.5774,13.53,G08047 391903064,106.5297,-75.8194,8.78,G08046;G08143;G08047;G08158;20SECONDTARGET 260708537,98.4527,-58.5228,9.37,G08140;G08047 349576261,112.01,-63.5177,11.53,G08047 # Sector 098 targets observed (2 min: 22, 20 s: 17) 449197831,79.6215,1.2532,8.71,G08047;20SECONDTARGET 411697517,78.3391,16.4142,14.41,G08047 1528696,75.7954,-30.3995,13.17,G08047;20SECONDTARGET 178879588,67.4186,-28.1972,13.26,G08047;20SECONDTARGET 32499655,84.3267,-27.9726,13.54,G08047;20SECONDTARGET 33521996,88.1468,-19.0316,13.34,G08047;20SECONDTARGET 37348844,91.8723,-25.5949,13.61,G08047;20SECONDTARGET 317548889,88.3783,-16.2657,6.78,G08047;20SECONDTARGET 95057860,90.4748,-13.4614,13.5,G08047;20SECONDTARGET 119292328,96.6467,-38.6075,8.98,G08047;20SECONDTARGET 124778445,94.4447,-35.7063,13.98,G08047;20SECONDTARGET 192826603,82.7141,-36.6311,13.91,G08047;20SECONDTARGET 1167538,70.9976,-31.9067,10.01,G08047;20SECONDTARGET 1309019,72.9006,-34.2262,13.77,G08047;20SECONDTARGET 1333933,73.3553,-32.8003,13.96,G08047;20SECONDTARGET 170849515,70.3397,-32.3205,14.86,G08047;20SECONDTARGET 77287067,70.4323,-40.0445,13.59,G08047;20SECONDTARGET 219344917,74.7373,-50.6278,9.76,G08047 260708537,98.4526,-58.5227,9.37,G08140;G08047 271971130,113.8532,-73.5774,13.53,G08047 349576261,112.01,-63.5177,11.53,G08047 391903064,106.5297,-75.8194,8.78,G08046;G08143;G08047;G08158;20SECONDTARGET # Sector 099 targets observed (2 min: 10, 20 s: 6) 348755728,134.0893,-12.9306,13.35,G08047 34068865,146.1195,-45.7807,8.03,G08140;G08047;20SECONDTARGET 11561667,149.8236,-27.3928,14.92,G08047 19684256,140.0875,-31.2691,13.18,G08047;20SECONDTARGET 178709444,166.074,-47.8216,13.66,G08047;20SECONDTARGET 466840711,166.9799,-61.1462,14.15,G08047 915110182,163.1009,-61.4468,14.7,G08047 272212970,180.2088,-46.1364,13.17,G08047;20SECONDTARGET 441546821,197.3169,-60.3085,7.79,G08046;G08047;20SECONDTARGET 360156606,186.767,-72.4519,13.8,G08041;G08103;G08137;G08047;20SECONDTARGET