# TESS Program G022164 Title: Exploring The Variability Of Ultracool Dwarfs With TESS PI: Pineda, J. Sebastian - University Of Colorado Type: SMALL Summary: We propose to conduct the most comprehensive study of variability in very-low mass stars and brown dwarfs, enabled by the TESS mission s long-term continuous photometric monitoring, red sensitive passband and broad sky coverage. We will examine the light-curves of nearly a thousand spectroscopically verified ultracool dwarfs to characterize brightness modulations, measure rotation periods and determine flare rates, including a sample of two min cadence targets to study flare profiles and short duration variability. This study will fundamentally probe the nature of the atmospheric, structural, and rotational changes at the end of the stellar main sequence, and how these physical processes manifest as broadband variability through magnetic activity and weather. # Sector 014 targets observed (17) 232629531,269.1202,55.0885,13.96,G022164;G022198 232650035,281.7655,55.3784,13.92,G022164;G022198 298554585,271.8166,50.258,16.28,G022182;G022164 320524973,264.9716,55.5463,14.46,G022164 157955474,280.8413,40.6758,13.69,G022164;G022198 274127413,298.4824,44.4124,10.35,G022164;G022076;G022080 219869957,259.5983,68.0409,14.05,G022164;G022198 230120143,250.0821,67.6033,11.98,G022164;G022076;G022198;G022056 287151936,253.8246,62.4141,11.66,G022164;G022198 307956653,256.8292,64.6587,15.49,G022164 219095664,269.3143,70.7021,13.88,G022164;G022198 229644973,280.0102,72.6827,13.27,G022164;G022198 420130591,291.076,75.5565,11.87,G022164;G022076;G022198 159508739,246.8595,81.087,16.11,G022164 288428941,269.2501,78.998,14.37,G022164;G022198 356632694,232.2908,63.2152,14.17,G022164 313007938,137.8003,74.0181,15.78,G022164 # Sector 015 targets observed (18) 232650035,281.7656,55.3783,13.92,G022164;G022198 274127413,298.4824,44.4124,10.35,G022164;G022076;G022080 277422933,310.8387,55.3575,11.68,G022164;G022252;G022062 232629531,269.1202,55.0885,13.96,G022164;G022198 287151936,253.8246,62.4141,11.66,G022164;G022198 307956653,256.8292,64.6587,15.49,G022164 320524973,264.9716,55.5463,14.46,G022164 219095664,269.3143,70.7021,13.88,G022164;G022198 229644973,280.0102,72.6827,13.27,G022164;G022198 288428941,269.2501,78.998,14.37,G022164;G022198 420130591,291.076,75.5565,11.87,G022164;G022076;G022198 230120143,250.0821,67.6033,11.98,G022164;G022076;G022198;G022056 356632694,232.2908,63.2152,14.17,G022164 154383758,217.6487,59.7244,13.09,G022164 405503787,224.4767,56.6533,12.08,G022164;G022076;G022198 141247464,187.2977,53.5524,14.31,G022164;G022238;G022198 165453967,200.8496,51.5409,14.78,G022164 284757460,201.5687,56.679,14.35,G022164;G022198 # Sector 016 targets observed (20) 420130591,291.0761,75.5565,11.87,G022164;G022076;G022198 232650035,281.7656,55.3783,13.92,G022164;G022198 277422933,310.8387,55.3575,11.68,G022164;G022252;G022062 329083521,319.3456,64.0442,11.87,G022164 412650616,329.6535,61.2856,13.22,G022164;G022198 232629531,269.1202,55.0885,13.96,G022164;G022198 307956653,256.8292,64.6587,15.49,G022164 320524973,264.9716,55.5463,14.46,G022164 219095664,269.3143,70.7021,13.88,G022164;G022198 219869957,259.5983,68.0409,14.05,G022164;G022198 229644973,280.0102,72.6827,13.27,G022164;G022198 230120143,250.0821,67.6033,11.98,G022164;G022076;G022198;G022056 356632694,232.2908,63.2152,14.17,G022164 287151936,253.8246,62.4141,11.66,G022164;G022198 193974787,230.2548,50.8887,14.56,G022164;G022252 405503787,224.4767,56.6532,12.08,G022164;G022076;G022198 154383758,217.6487,59.7244,13.09,G022164 165453967,200.8496,51.5409,14.78,G022164 198107795,209.1694,43.7166,13.46,G022164 27322306,212.3816,41.636,12.63,G022164;G022198 # Sector 017 targets observed (19) 15652493,16.9773,26.1139,13.97,G022164;G022198 426959594,9.0724,18.3536,15.93,G022182;G022164 201929047,3.2409,50.9884,13.34,G022164;G022109;G022148;G022198 452882423,2.8729,59.138,11.93,G022164;G022252;G022076 177175753,356.8362,42.6368,12.86,G022164;G022198 412650616,329.6535,61.2856,13.22,G022164;G022198 323057249,319.4332,73.7682,13.75,G022164;G022198 329083521,319.3456,64.0442,11.87,G022164 219095664,269.3143,70.7021,13.88,G022164;G022198 229644973,280.0102,72.6827,13.27,G022164;G022198 288428941,269.2501,78.998,14.37,G022164;G022198 420130591,291.0761,75.5566,11.87,G022164;G022076;G022198 219869957,259.5983,68.0409,14.05,G022164;G022198 230120143,250.0821,67.6033,11.98,G022164;G022076;G022198;G022056 287151936,253.8247,62.4141,11.66,G022164;G022198 307956653,256.8292,64.6587,15.49,G022164 188819782,262.6161,52.718,13.11,G022164;G022198 232629531,269.1202,55.0885,13.96,G022164;G022198 320524973,264.9716,55.5463,14.46,G022164 # Sector 018 targets observed (19) 192297306,45.2639,44.2818,14.08,G022164;G022198 63781635,34.2955,35.4409,12.12,G022164;G022076;G022252;G022198 352770254,21.1031,68.3233,13.7,G022164 452882423,2.8728,59.138,11.93,G022164;G022252;G022076 415957794,28.4584,44.4574,12.3,G022164;G022198 316627328,52.7023,54.232,12.18,G022164;G022076 323057249,319.4333,73.7682,13.75,G022164;G022198 329083521,319.3456,64.0442,11.87,G022164 219095664,269.3143,70.7021,13.88,G022164;G022198 229644973,280.0102,72.6827,13.27,G022164;G022198 288428941,269.2501,78.998,14.37,G022164;G022198 420130591,291.0761,75.5566,11.87,G022164;G022076;G022198 219869957,259.5983,68.0409,14.05,G022164;G022198 230120143,250.0821,67.6033,11.98,G022164;G022076;G022198;G022056 287151936,253.8247,62.4141,11.66,G022164;G022198 307956653,256.8292,64.6587,15.49,G022164 232629531,269.1202,55.0885,13.96,G022164;G022198 232650035,281.7656,55.3783,13.92,G022164;G022198 320524973,264.9716,55.5463,14.46,G022164 # Sector 019 targets observed (26) 187092382,59.3318,41.1284,13.04,G022164;G022076;G022252;G022198 355147124,71.5857,48.7442,13.49,G022164;G022198 58108583,64.072,28.2868,13.1,G022164;G022148;G022109 58229181,64.5333,28.4342,14.04,G022164;G022148;G022109 58285782,64.7546,28.3282,13.39,G022164;G022148;G022109 58638214,66.3147,28.4909,13.59,G022164;G022148;G022109 59965448,72.2394,29.231,14.08,G022164;G022148;G022109 174821904,90.6281,39.1801,15.65,G022164 239097694,84.8581,40.6406,13.5,G022164;G022198 428681517,47.7792,73.7662,11.61,G022164;G022076;G022252;G022198 316627328,52.7023,54.232,12.18,G022164;G022076 87302025,78.8802,59.1826,13.6,G022164;G022198 428891621,84.5773,79.5172,14.21,G022164;G022198 159508739,246.8595,81.087,16.11,G022164 288428941,269.2501,78.998,14.37,G022164;G022198 323057249,319.4333,73.7683,13.75,G022164;G022198 229644973,280.0103,72.6827,13.27,G022164;G022198 420130591,291.0762,75.5566,11.87,G022164;G022076;G022198 219095664,269.3143,70.7022,13.88,G022164;G022198 219869957,259.5983,68.0409,14.05,G022164;G022198 230120143,250.082,67.6033,11.98,G022164;G022076;G022198;G022056 287151936,253.8247,62.4141,11.66,G022164;G022198 307956653,256.8292,64.6587,15.49,G022164 320524973,264.9716,55.5463,14.46,G022164 232629531,269.1202,55.0885,13.96,G022164;G022198 232650035,281.7656,55.3783,13.92,G022164;G022198 # Sector 020 targets observed (21) 453406992,114.6971,49.4215,12.5,G022164;G022198 252875556,100.2422,49.7408,12.64,G022164;G022198 9882031,110.3524,37.2332,13.78,G022164;G022198 147556632,126.4592,69.0266,12.06,G022164;G022076;G022198 73250951,123.7759,65.3656,13.63,G022164;G022198 445018193,113.0073,57.9237,13.9,G022164;G022198 88384320,104.4917,62.3191,10.31,G022164;G022252;G022076;G022198 309707247,125.3648,52.3481,13.76,G022164;G022198 428891621,84.5773,79.5172,14.21,G022164;G022198 159508739,246.8595,81.087,16.11,G022164 288428941,269.2501,78.998,14.37,G022164;G022198 219095664,269.3143,70.7022,13.88,G022164;G022198 229644973,280.0103,72.6827,13.27,G022164;G022198 420130591,291.0762,75.5566,11.87,G022164;G022076;G022198 219869957,259.5983,68.0409,14.05,G022164;G022198 230120143,250.082,67.6033,11.98,G022164;G022076;G022198;G022056 188819782,262.6161,52.718,13.11,G022164;G022198 232629531,269.1202,55.0885,13.96,G022164;G022198 287151936,253.8247,62.4141,11.66,G022164;G022198 320524973,264.9716,55.5463,14.46,G022164 232650035,281.7656,55.3783,13.92,G022164;G022198 # Sector 021 targets observed (22) 331945698,151.7654,35.4487,13.35,G022164;G022198 29169063,135.1452,47.5637,13.77,G022164;G022198 3664898,127.4487,26.7726,10.5,G022164;G022252;G022076;G022198;G022056 85914263,137.8767,22.8029,13.7,G022164;G022198 88098880,148.4894,22.6127,14.01,G022164;G022198 150182869,137.3524,49.6545,13.81,G022164;G022198 318210289,142.5428,50.3372,13.29,G022164 150265247,159.771,43.8741,13.41,G022164;G022198 8259901,161.8052,40.4468,15.07,G022164 8259902,161.8004,40.4453,13.55,G022164;G022198 356632694,232.2908,63.2152,14.17,G022164 159508739,246.8595,81.087,16.11,G022164 219095664,269.3143,70.7022,13.88,G022164;G022198 229644973,280.0103,72.6827,13.27,G022164;G022198 288428941,269.2501,78.998,14.37,G022164;G022198 420130591,291.0762,75.5566,11.87,G022164;G022076;G022198 219869957,259.5983,68.0409,14.05,G022164;G022198 230120143,250.082,67.6033,11.98,G022164;G022076;G022198;G022056 287151936,253.8247,62.4141,11.66,G022164;G022198 307956653,256.8292,64.6587,15.49,G022164 232629531,269.1202,55.0885,13.96,G022164;G022198 320524973,264.9716,55.5463,14.46,G022164 # Sector 022 targets observed (29) 135101891,185.9308,22.2543,11.03,G022164;G022252 135140399,186.2535,23.3864,13.29,G022164 138860476,178.1746,24.6357,16.1,G022164 334576780,183.2624,21.7766,10.96,G022164;G022252 172601525,165.9722,24.2943,13.43,G022164;G022198 84925818,164.2648,22.2882,13.3,G022164;G022198 386971069,173.5644,20.7821,13.64,G022164;G022198 165453967,200.8496,51.5409,14.78,G022164 180696669,201.4619,40.316,13.96,G022164;G022198 22007699,195.3211,41.2112,13.64,G022164;G022198 11893637,177.7275,48.372,10.3,G022164;G022252;G022076;G022198 141247464,187.2974,53.5525,14.31,G022164;G022238;G022198 284568148,185.4597,46.5456,13.34,G022164;G022198 17970570,170.68,37.9302,13.38,G022164;G022198 99269890,169.5394,38.4881,14.02,G022164;G022198 165945992,195.1799,35.9664,14.1,G022164;G022198 18069841,185.2066,39.9418,13.72,G022164;G022198 148766316,208.8915,47.0572,13.09,G022164 356632694,232.2908,63.2152,14.17,G022164 405503787,224.4767,56.6532,12.08,G022164;G022076;G022198 219095664,269.3143,70.7022,13.88,G022164;G022198 219869957,259.5982,68.0409,14.05,G022164;G022198 288428941,269.2501,78.998,14.37,G022164;G022198 287151936,253.8247,62.4141,11.66,G022164;G022198 307956653,256.8293,64.6587,15.49,G022164 232629531,269.1202,55.0885,13.96,G022164;G022198 232650035,281.7656,55.3783,13.92,G022164;G022198 229644973,280.0103,72.6827,13.27,G022164;G022198 420130591,291.0762,75.5566,11.87,G022164;G022076;G022198 # Sector 023 targets observed (35) 457860618,210.4562,10.2966,13.97,G022164;G022198 72585573,208.6373,15.5666,14.1,G022164;G022198 149565536,195.1723,19.2026,15.89,G022164 282783165,198.5834,13.3325,11.88,G022164;G022252;G022113;G022198 350545089,189.942,4.1772,13.21,G022164;G022198 422245371,193.71,11.9852,12.43,G022164;G022198 87550294,188.8224,13.3029,13.52,G022164;G022252;G022198 161662947,221.0709,30.0354,14.13,G022164 286963145,217.1778,33.1736,15.1,G022164 148766316,208.8914,47.0572,13.09,G022164 180696669,201.4619,40.316,13.96,G022164;G022198 198107795,209.1693,43.7166,13.46,G022164 22819191,203.999,40.3629,13.15,G022164;G022238;G022198 27322306,212.3816,41.636,12.63,G022164;G022198 165945176,195.0288,30.6513,13.91,G022164;G022198 165945992,195.1799,35.9664,14.1,G022164;G022198 165993932,196.7108,30.8457,12.14,G022164;G022076;G022198 307789889,212.544,18.7697,13.81,G022164;G022198 116501197,233.6716,46.6931,14.25,G022164;G022198 193974787,230.2549,50.8887,14.56,G022164;G022252 198307092,230.3137,39.7556,12.71,G022164;G022198 20204780,226.6941,40.6708,13.56,G022164;G022198 20305594,229.1682,39.1798,13.03,G022164;G022198 154383758,217.6484,59.7245,13.09,G022164 356632694,232.2908,63.2152,14.17,G022164 405503787,224.4768,56.6532,12.08,G022164;G022076;G022198 219869957,259.5982,68.0409,14.05,G022164;G022198 230120143,250.082,67.6034,11.98,G022164;G022076;G022198;G022056 232629531,269.1202,55.0885,13.96,G022164;G022198 287151936,253.8247,62.4141,11.66,G022164;G022198 320524973,264.9716,55.5463,14.46,G022164 232650035,281.7656,55.3783,13.92,G022164;G022198 219095664,269.3143,70.7022,13.88,G022164;G022198 229644973,280.0103,72.6827,13.27,G022164;G022198 420130591,291.0763,75.5566,11.87,G022164;G022076;G022198 # Sector 024 targets observed (30) 57031043,249.2546,35.5929,13.14,G022164;G022198 198307092,230.3136,39.7556,12.71,G022164;G022198 20204780,226.6941,40.6708,13.56,G022164;G022198 20305594,229.1682,39.1798,13.03,G022164;G022198 161662947,221.0709,30.0354,14.13,G022164 229876034,224.6015,28.6636,15.76,G022164 229879888,225.1299,25.3738,12.37,G022164 237091400,231.1028,29.4219,13.55,G022164 311188315,225.2838,22.8336,14.96,G022182;G022164 229567955,240.1041,19.7735,14.01,G022164;G022198 188819782,262.6161,52.718,13.11,G022164;G022198 232629531,269.1201,55.0885,13.96,G022164;G022198 320524973,264.9716,55.5463,14.46,G022164 287151936,253.8247,62.4141,11.66,G022164;G022198 307956653,256.8293,64.6587,15.49,G022164 356632694,232.2908,63.2152,14.17,G022164 116501197,233.6716,46.6931,14.25,G022164;G022198 193974787,230.2549,50.8887,14.56,G022164;G022252 255932726,247.8272,40.8661,11.45,G022164;G022076;G022198;G022056 219095664,269.3143,70.7022,13.88,G022164;G022198 219869957,259.5982,68.0409,14.05,G022164;G022198 229644973,280.0103,72.6827,13.27,G022164;G022198 230120143,250.082,67.6034,11.98,G022164;G022076;G022198;G022056 329083521,319.3457,64.0442,11.87,G022164 288428941,269.2501,78.998,14.37,G022164;G022198 323057249,319.4335,73.7683,13.75,G022164;G022198 420130591,291.0763,75.5566,11.87,G022164;G022076;G022198 412650616,329.6538,61.2856,13.22,G022164;G022198 452882423,2.8726,59.1378,11.93,G022164;G022252;G022076 352770254,21.1032,68.3232,13.7,G022164 # Sector 025 targets observed (25) 257398691,257.618,27.9689,13.86,G022164;G022238;G022198 316631972,263.8049,26.5781,14.07,G022164 321695100,262.8738,27.3552,15.29,G022164 219066411,251.6287,34.5798,12.66,G022164;G022076;G022198 57031043,249.2546,35.5929,13.14,G022164;G022198 229567955,240.1042,19.7735,14.01,G022164;G022198 355960626,256.459,18.0184,13.78,G022164;G022198 188819782,262.6161,52.718,13.11,G022164;G022198 232629531,269.1201,55.0885,13.96,G022164;G022198 232650035,281.7656,55.3783,13.92,G022164;G022198 298554585,271.8166,50.258,16.28,G022182;G022164 320524973,264.9716,55.5463,14.46,G022164 287151936,253.8247,62.4141,11.66,G022164;G022198 255932726,247.8272,40.8661,11.45,G022164;G022076;G022198;G022056 193680874,267.3299,47.9349,13.35,G022164;G022198 219095664,269.3143,70.7022,13.88,G022164;G022198 219869957,259.5982,68.0409,14.05,G022164;G022198 230120143,250.082,67.6034,11.98,G022164;G022076;G022198;G022056 307956653,256.8293,64.6587,15.49,G022164 323057249,319.4335,73.7683,13.75,G022164;G022198 420130591,291.0763,75.5566,11.87,G022164;G022076;G022198 159508739,246.8595,81.087,16.11,G022164 288428941,269.2501,78.998,14.37,G022164;G022198 352770254,21.1032,68.3232,13.7,G022164 428681517,47.78,73.766,11.61,G022164;G022076;G022252;G022198 # Sector 026 targets observed (28) 24113425,276.5308,30.2347,14.35,G022164 27858644,278.9073,32.9939,13.29,G022182;G022164;G022252;G022056 157955474,280.8413,40.676,13.69,G022164;G022198 158710279,269.3203,24.8739,13.91,G022164 159508739,246.8595,81.087,16.11,G022164 193680874,267.3299,47.9349,13.35,G022164;G022198 219869957,259.5982,68.0408,14.05,G022164;G022198 229644973,280.0104,72.6827,13.27,G022164;G022198 230120143,250.0819,67.6034,11.98,G022164;G022076;G022198;G022056 232629531,269.1201,55.0886,13.96,G022164;G022198 232650035,281.7656,55.3783,13.92,G022164;G022198 257398691,257.618,27.9689,13.86,G022164;G022238;G022198 258666919,278.3104,22.3188,12.98,G022164 287151936,253.8247,62.4141,11.66,G022164;G022198 298545715,267.4931,22.6846,14.39,G022164;G022198 298554585,271.8166,50.258,16.28,G022182;G022164 307956653,256.8293,64.6587,15.49,G022164 313007938,137.8001,74.018,15.78,G022164 316631972,263.805,26.5781,14.07,G022164 316993844,279.8884,29.87,13.34,G022164;G022198 317180704,280.4489,24.3623,13.72,G022164;G022198 320524973,264.9716,55.5463,14.46,G022164 321695100,262.8738,27.3552,15.29,G022164 358237020,282.9405,26.7026,13.76,G022164;G022198 400361232,263.4708,16.9195,10.89,G022056;G022164;G022198 420130591,291.0764,75.5567,11.87,G022164;G022076;G022198 428681517,47.7801,73.766,11.61,G022164;G022076;G022252;G022198 428891621,84.5779,79.5171,14.21,G022164;G022198