NICER observation list: Target ID 462801

Abstract

Knowledge of the structure and kinematics of gas around supermassive black holes is vital to understanding accretion and thus AGN feedback. To this end, a multiwavelength reverberation mapping (RM) campaign on Mrk 817 has been built around an already-approved Hubble (HST) Large Program. This is a rare opportunity since it is only the second ~200 orbit HST RM campaign in its 30 year lifetime. Previous RM programs have mapped the accretion disk and broad line region, but revealed that X-ray flux correlates poorly with longer wavelengths. This is a conundrum, since X-rays are thought to drive the multi-wavelength variability. We propose NICER monitoring every other day throughout to track the X-ray spectral changes (rather than just flux changes) and probe the X-ray/UV/optical connection.
Obsid RA DEC l b Start End Exposure Number of
Modules		 Number of
Processing		 Status of
Processing		 Date of
Processing		 Public
date
4628010101 219.093 58.794 100.299 53.478 59274.0192 59274.0417 1788.0 52 3 VALIDATED 59278.6 59288
4628010201 219.092 58.794 100.299 53.478 59276.0803 59276.0972 1153.0 52 2 VALIDATED 59282.0 59290
4628010301 219.092 58.795 100.300 53.478 59278.0162 59278.0329 1297.0 52 2 VALIDATED 59282.7 59292
4628010401 219.092 58.794 100.300 53.478 59280.0351 59280.0495 1156.0 52 3 VALIDATED 59284.6 59294
4628010501 219.093 58.794 100.299 53.478 59282.0179 59282.0347 1309.0 52 4 VALIDATED 59293.7 59296
4628010601 219.092 58.794 100.300 53.478 59284.0185 59284.0330 1094.0 52 3 VALIDATED 59293.8 59298
4628010701 219.092 58.794 100.299 53.479 59286.5356 59286.5503 1097.0 52 2 VALIDATED 59293.9 59300
4628010801 219.092 58.794 100.300 53.478 59288.4741 59288.5022 2217.0 52 4 VALIDATED 59294.1 59302
4628010901 219.092 58.793 100.298 53.480 59290.4769 59290.4931 1343.0 52 3 VALIDATED 59295.9 59304
4628011001 219.090 58.794 100.300 53.479 59292.3466 59292.6144 1700.0 52 2 VALIDATED 59296.6 59306
4628011101 219.091 58.794 100.300 53.479 59294.2824 59294.3132 1826.0 52 3 VALIDATED 59298.6 59308
4628011102 219.091 58.794 100.300 53.479 59296.3472 59296.3782 2122.0 52 3 VALIDATED 59300.6 59310
4628011301 219.092 58.794 100.300 53.478 59298.3472 59298.3782 2293.0 52 3 VALIDATED 59302.7 59312
4628011401 219.092 58.794 100.300 53.479 59300.2215 59300.2383 1150.0 52 6 VALIDATED 59322.7 59314
4628011501 219.091 58.794 100.300 53.479 59302.5449 59302.5621 1417.0 52 5 VALIDATED 59319.8 59316
4628011601 219.091 58.794 100.300 53.479 59304.0935 59304.1113 950.0 52 6 VALIDATED 59315.8 59318
4628011701 219.090 58.794 100.301 53.479 59306.0937 59306.1125 912.0 52 6 VALIDATED 59315.9 59320
4628011901 219.088 58.793 100.301 53.480 59309.5130 59309.5204 184.0 52 5 VALIDATED 59319.9 59323
4628012101 219.085 58.789 100.298 53.485 59314.7988 59314.9343 0.0 52 5 VALIDATED 59324.8 59328
4628012201 219.091 58.794 100.301 53.478 59316.2178 59316.2945 267.0 52 5 VALIDATED 59327.0 59330
4628012301 219.088 58.798 100.307 53.477 59318.1514 59318.1653 694.0 52 6 VALIDATED 59330.2 59332
4628012401 219.092 58.795 100.300 53.478 59320.1472 59320.1667 1105.0 52 5 VALIDATED 59331.6 59334
4628012501 219.091 58.793 100.299 53.479 59321.8922 59321.9775 41.0 52 6 VALIDATED 59332.7 59335
4628012502 219.094 58.794 100.298 53.478 59322.0223 59322.1708 304.0 52 7 VALIDATED 59332.7 59336
4628012701 219.094 58.795 100.300 53.477 59327.1086 59327.1225 817.0 52 5 VALIDATED 59336.8 59341
4628012801 219.096 58.795 100.298 53.476 59328.3986 59328.4139 591.0 52 5 VALIDATED 59337.8 59342
4628012901 219.094 58.795 100.299 53.477 59330.0840 59330.0956 891.0 52 4 VALIDATED 59340.0 59344
4628013001 219.094 58.794 100.298 53.478 59331.9042 59331.9769 765.0 52 5 VALIDATED 59341.9 59345
4628013002 219.095 58.793 100.297 53.478 59332.0333 59332.1060 678.0 52 5 VALIDATED 59341.9 59346
4628013101 219.093 58.793 100.297 53.479 59334.2100 59334.2359 1990.0 52 6 VALIDATED 59343.8 59348
4628013201 219.097 58.794 100.296 53.477 59336.1451 59336.1725 1066.0 52 5 VALIDATED 59345.7 59350
4628013301 219.093 58.794 100.298 53.478 59338.0884 59338.1093 1613.0 52 5 VALIDATED 59347.7 59352
4628013401 219.092 58.794 100.299 53.478 59340.0211 59340.0458 1932.0 52 6 VALIDATED 59349.7 59354
4628013501 219.092 58.794 100.299 53.478 59342.0222 59342.0465 1909.0 52 6 VALIDATED 59351.6 59356
4628013601 219.092 58.794 100.299 53.479 59344.0236 59344.0429 1489.0 52 6 VALIDATED 59354.7 59358
4628013701 219.092 58.794 100.299 53.479 59346.0889 59346.1077 1430.0 52 6 VALIDATED 59356.7 59360
4628013801 219.092 58.794 100.299 53.478 59348.0262 59348.0492 1836.0 52 5 VALIDATED 59357.7 59362
4628013901 219.092 58.794 100.299 53.479 59350.7434 59350.7600 1147.0 52 7 VALIDATED 59360.7 59364
4628014001 219.092 58.794 100.299 53.478 59352.2951 59352.3090 1029.0 52 4 VALIDATED 59361.7 59366
4628014101 219.092 58.793 100.298 53.479 59353.8951 59353.9695 1200.0 52 6 VALIDATED 59363.6 59367
4628014201 219.092 58.793 100.298 53.480 59356.0227 59356.0995 1673.0 52 6 VALIDATED 59368.0 59370
4628014301 219.090 58.792 100.298 53.481 59358.2185 59358.2388 1408.0 52 5 VALIDATED 59368.2 59372
4628014401 219.090 58.791 100.298 53.481 59360.6039 59360.6284 1554.0 52 6 VALIDATED 59373.7 59374
4628014501 219.092 58.794 100.299 53.479 59362.6065 59362.6297 1876.0 52 6 VALIDATED 59372.7 59376
4628014601 219.091 58.794 100.300 53.479 59364.0931 59364.1694 1509.0 52 5 VALIDATED 59373.8 59378
4628014701 219.091 58.794 100.300 53.479 59366.2199 59366.2359 1184.0 52 5 VALIDATED 59375.7 59380
4628014801 219.091 58.794 100.300 53.479 59368.8674 59368.8840 1055.0 52 7 VALIDATED 59378.7 59382
4628014901 219.091 58.794 100.300 53.478 59370.8676 59370.8953 2036.0 52 7 VALIDATED 59381.8 59384
4628015001 219.091 58.794 100.300 53.479 59372.9978 59373.0757 1165.0 52 6 VALIDATED 59382.7 59387
4628015101 219.091 58.794 100.300 53.479 59374.7396 59374.8118 1316.0 52 7 VALIDATED 59384.7 59388
4628015201 219.092 58.794 100.300 53.478 59376.8693 59376.9458 857.0 52 7 VALIDATED 59386.7 59390
4628015301 219.084 58.796 100.307 53.480 59378.9341 59378.9491 431.0 52 6 VALIDATED 59388.7 59392
4628015401 219.091 58.794 100.301 53.479 59380.9336 59380.9512 430.0 52 7 VALIDATED 59390.7 59394
4628015501 219.091 58.794 100.301 53.479 59382.9334 59382.9523 811.0 52 6 VALIDATED 59393.1 59396
4628015601 219.091 58.795 100.301 53.478 59384.8682 59384.8873 590.0 52 6 VALIDATED 59394.7 59398
4628015701 219.096 58.797 100.300 53.474 59386.8023 59386.8204 0.0 52 6 VALIDATED 59397.8 59400
4628015801 219.098 58.790 100.291 53.480 59388.8078 59388.8836 0.0 52 6 VALIDATED 59398.9 59402
4628015901 219.091 58.798 100.304 53.476 59390.2836 59390.3586 236.0 52 5 VALIDATED 59401.9 59404
4628016001 219.092 58.795 100.300 53.478 59391.7572 59391.7750 798.0 52 6 VALIDATED 59404.9 59405
4628016101 219.092 58.795 100.300 53.478 59393.8229 59393.8988 1660.0 52 6 VALIDATED 59405.0 59407
4628016201 219.092 58.794 100.300 53.478 59396.5947 59396.6081 937.0 52 5 VALIDATED 59407.9 59410
4628016301 219.093 58.794 100.299 53.478 59398.4656 59398.4845 1442.0 52 6 VALIDATED 59411.8 59412
4628016401 219.095 58.793 100.297 53.478 59400.6694 59400.6880 1042.0 52 6 VALIDATED 59410.9 59414
4628016501 219.095 58.794 100.297 53.478 59402.6021 59402.6241 1280.0 52 6 VALIDATED 59412.8 59416
4628016601 219.093 58.794 100.299 53.478 59404.6065 59404.6248 896.0 52 6 VALIDATED 59415.8 59418
4628016701 219.094 58.794 100.298 53.478 59406.4900 59406.6271 1047.0 52 6 VALIDATED 59416.7 59420
4628016801 219.092 58.794 100.300 53.478 59408.6646 59408.6833 1415.0 52 6 VALIDATED 59418.7 59422
4628016901 219.094 58.794 100.298 53.478 59410.6072 59410.6289 1278.0 52 6 VALIDATED 59420.7 59424
4628017001 219.093 58.793 100.298 53.479 59413.6954 59413.7206 782.0 52 7 VALIDATED 59423.6 59427
4628017101 219.093 58.794 100.298 53.478 59414.3500 59414.3662 1334.0 52 5 VALIDATED 59423.7 59428
4628017201 219.092 58.794 100.299 53.479 59416.2787 59416.3015 1770.0 52 6 VALIDATED 59425.7 59430
4628017601 219.092 58.795 100.301 53.478 59424.5434 59424.5581 936.0 52 7 VALIDATED 59471.8 59438
4628017701 219.092 58.794 100.299 53.478 59426.1057 59426.1206 1210.0 52 8 VALIDATED 59471.9 59440
4628017801 219.092 58.794 100.300 53.478 59428.1715 59428.1863 1232.0 52 7 VALIDATED 59472.1 59442
4628017901 219.092 58.794 100.299 53.479 59430.6072 59430.6873 1988.0 52 4 VALIDATED 59466.2 59444
4628018001 219.092 58.794 100.299 53.479 59432.6097 59432.6300 1577.0 52 7 VALIDATED 59466.3 59446
4628018101 219.092 58.794 100.299 53.479 59434.4829 59434.5010 1397.0 52 6 VALIDATED 59467.2 59448
4628018201 219.091 58.794 100.300 53.479 59436.6122 59436.6278 1207.0 52 5 VALIDATED 59467.3 59450
4628018301 219.091 58.794 100.300 53.479 59438.4835 59438.4996 1177.0 52 5 VALIDATED 59468.1 59452
4628018401 219.092 58.794 100.300 53.479 59440.4200 59440.4397 1553.0 52 4 VALIDATED 59468.2 59454
4628018501 219.091 58.794 100.300 53.479 59442.4859 59442.5059 1634.0 52 7 VALIDATED 59471.0 59456
4628018601 219.091 58.794 100.300 53.479 59444.3567 59444.3775 1644.0 52 6 VALIDATED 59471.1 59458
4628018701 219.091 58.794 100.300 53.479 59446.0394 59446.0589 1551.0 52 6 VALIDATED 59471.1 59460
4628018801 219.091 58.794 100.300 53.479 59448.0352 59448.0558 1634.0 52 6 VALIDATED 59471.2 59462
4628018901 219.091 58.794 100.300 53.479 59449.9755 59449.9903 1158.0 52 7 VALIDATED 59471.3 59463
4628019001 219.090 58.796 100.303 53.478 59452.6863 59452.7079 1251.0 52 6 VALIDATED 59464.8 59466
4628019101 219.087 58.795 100.304 53.479 59454.6810 59454.6999 1219.0 52 5 VALIDATED 59464.9 59468
4628019201 219.090 58.797 100.304 53.477 59456.6898 59456.7065 0.0 52 6 VALIDATED 59466.6 59470
4628019401 219.091 58.794 100.300 53.478 59460.5472 59460.5574 615.0 52 5 VALIDATED 59474.9 59474
4628019501 219.091 58.794 100.300 53.479 59463.3828 59463.4560 1056.0 52 4 VALIDATED 59475.0 59477
4628019601 219.092 58.795 100.300 53.478 59464.6125 59464.6278 1203.0 52 4 VALIDATED 59475.1 59478
4628019701 219.093 58.795 100.300 53.478 59466.7468 59466.7623 1226.0 52 8 VALIDATED 59484.8 59480
4628019801 219.092 58.797 100.303 53.477 59468.4824 59468.5049 1498.0 52 4 VALIDATED 59478.7 59482
4628019901 219.098 58.799 100.301 53.473 59470.6808 59470.6995 1504.0 52 5 VALIDATED 59480.9 59484