# TESS Program G03080 Title: Towards Constraints On Morning And Evening Terminators Of Distant Worlds With TESS PI: Espinoza, Nestor - Space Telescope Science Institute Type: SMALL Summary: The technique of transmission spectroscopy --- the wavelength-dependent change in the planetary radii due to opacity sources in its atmosphere --- has been one of the main workhorses of the field of exoplanet atmospheres in terms of providing constraints on the atmospheric elemental abundances in gas giant exoplanets. To date, this technique relies on one simple, key assumption: the terminator region we observe during transit is homogeneous. In this work, we aim to test this assumption, proposing to detect signatures of terminator inhomogeneities using the most precise transit lightcurves to be obtained by the TESS mission during its extended mission. # Sector 027 targets observed (2 min: 5, 20 s: 5) 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET # Sector 028 targets observed (2 min: 5, 20 s: 5) 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET # Sector 029 targets observed (2 min: 6, 20 s: 6) 166739520,36.7759,-50.2844,9.64,G03080;G03278;G03272;G03106;20SECONDTARGET 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET # Sector 030 targets observed (2 min: 6, 20 s: 6) 166739520,36.7759,-50.2844,9.64,G03080;G03278;G03272;G03106;20SECONDTARGET 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET # Sector 031 targets observed (2 min: 5, 20 s: 5) 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET # Sector 032 targets observed (2 min: 5, 20 s: 5) 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET # Sector 033 targets observed (2 min: 5, 20 s: 5) 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET # Sector 034 targets observed (2 min: 5, 20 s: 5) 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET # Sector 035 targets observed (2 min: 4, 20 s: 4) 408310006,144.875,-20.9824,8.87,G03080;G03278;G03181;G03106;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET # Sector 036 targets observed (2 min: 5, 20 s: 5) 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET # Sector 037 targets observed (2 min: 5, 20 s: 5) 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET # Sector 038 targets observed (2 min: 4, 20 s: 4) 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET # Sector 039 targets observed (2 min: 5, 20 s: 5) 25155310,63.375,-69.2265,10.61,G03080;G03278;G03280;G03106;20SECONDTARGET 271893367,112.9653,-73.606,10.9,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 149603524,87.1398,-63.9883,9.71,G03080;G03278;G03280;G03181;G03106;20SECONDTARGET 38846515,68.9599,-64.027,10.32,G03080;G03232;G03278;G03181;G03106;20SECONDTARGET 55652896,73.9799,-63.2604,11.57,G03080;G03278;G03106;G03068;20SECONDTARGET