# TESS Program G022040 Title: Precision Photometry Of Interferometric Calibration Stars PI: Roettenbacher, Rachael - Yale University Type: SMALL Summary: Interferometry makes wide-ranging science possible, from measuring fundamental stellar parameters to imaging stellar surfaces. Interferometric calibration stars are ideally unresolved, nearby on the sky, and of similar spectral types and luminosity classes to the science target. However, this is not always possible, and concessions must be made. The presence of brightness variations across their surfaces could cause calibration issues, affecting the science targets. With TESS observations, these calibrators will be examined for any variations that could affect their suitability as interferometric calibrators. The impact of the variations on the interferometric observables will be determined. Improving the quality of calibrators will improve the science results and effects on astrophysics. # Sector 014 targets observed (12) 405946127,304.3711,42.7221,4.83,G022040 63819242,308.8251,41.8903,5.81,G022040 111787652,292.0577,29.4501,5.65,G022040 20780347,284.7359,32.6896,1.87,G022133;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 394323335,290.639,33.518,5.2,G022040 284827826,293.023,25.5966,6.41,G022040;G022103 233798897,303.3501,56.5682,4.18,G022133;G022040;G022223;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 122138956,289.9077,40.2671,5.83,G022040 27006649,293.9831,50.2388,5.56,G022040 27014182,294.1105,50.2225,4.17,G022133;G022040;G022103;G022171;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 424870548,292.4267,51.7305,3.63,G022133;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 202511282,232.7309,64.2091,4.89,G022040;G022133;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 # Sector 015 targets observed (14) 167407697,319.354,39.3947,4.1,G022133;G022040;G022020;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 373445744,320.2558,40.3438,5.83,G022040;G022032 418442166,315.7703,38.6574,5.26,G022040 405946127,304.3711,42.7221,4.83,G022040 63819242,308.8251,41.8903,5.81,G022040 243544723,309.9848,22.1438,8.1,G022040 326202925,328.1243,28.7932,5.07,G022040;G022133;G022103;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 387359292,310.7963,66.6576,5.41,G022040;G022133;G022223;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 27006649,293.9831,50.2388,5.56,G022040 27014182,294.1105,50.2225,4.17,G022133;G022040;G022103;G022171;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 424870548,292.4267,51.7305,3.63,G022133;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 233798897,303.3501,56.5682,4.18,G022133;G022040;G022223;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 202511282,232.7309,64.2091,4.89,G022040;G022133;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 224292240,183.8575,57.0327,3.25,G022133;G022040;G022109;G022148;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 # Sector 016 targets observed (21) 252756054,348.1383,49.4067,4.25,G022133;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 343658635,341.6104,58.7152,7.35,G022040 421925727,334.9182,56.204,6.32,G022040 239409475,321.1649,44.2919,7.04,G022040 373445744,320.2558,40.3438,5.83,G022040;G022032 468617448,314.8928,44.2263,6.56,G022040 164150392,335.6663,30.7455,6.85,G022040 128820374,340.4012,41.5495,5.03,G022040;G022133;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 153939702,340.9057,42.9475,7.64,G022040 374028171,346.551,36.8202,5.78,G022040 259232873,292.7723,69.527,6.78,G022040 387359292,310.7963,66.6576,5.41,G022040;G022133;G022223;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 233798897,303.3501,56.5682,4.18,G022133;G022040;G022223;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 275502993,320.0858,60.5351,7.92,G022040 321983920,323.6072,66.7263,6.0,G022040 321983989,323.6624,66.7722,5.88,G022040 405591119,324.2939,62.3049,6.24,G022040 427267162,322.0618,60.0912,8.06,G022040 469584459,328.7214,56.6112,4.96,G022133;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 202511282,232.7309,64.2091,4.89,G022040;G022133;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 219033887,206.8842,49.3132,2.09,G022040;G022133;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 # Sector 017 targets observed (19) 189543371,23.9701,41.0764,5.43,G022040 432698066,14.1894,38.4995,3.73,G022133;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 240669906,9.243,53.8969,3.89,G022133;G022222;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 320184852,7.4916,59.3497,7.85,G022040 331391396,17.7779,55.1498,4.22,G022133;G022040;G022109;G022148;G022223;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 428550261,9.8568,60.1149,7.95,G022040 252756054,348.1383,49.4067,4.25,G022133;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 177561812,359.2652,42.6582,5.3,G022040 343658635,341.6104,58.7152,7.35,G022040 421925727,334.9182,56.204,6.32,G022040 434625389,345.4238,60.1973,6.24,G022040 469584459,328.7214,56.6112,4.96,G022133;G022040;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 268621003,347.6431,60.4209,7.4,G022040 275502993,320.0858,60.5351,7.92,G022040 321983920,323.6072,66.7263,6.0,G022040 387359292,310.7963,66.6576,5.41,G022040;G022133;G022223;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 405591119,324.2939,62.3049,6.24,G022040 427267162,322.0618,60.0912,8.06,G022040 259232873,292.7723,69.527,6.78,G022040