NICER observation list: Target ID 559601

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, Mrk 817 is currently the subject of an ambitious 15-month multi-observatory intensive disk reverberation mapping campaign. However, both UV and X-ray observations have revealed the presence of new obscuration that displays dramatic variability. NICER monitoring has been key to tracking the changes in the X-ray obscurer. Optical monitoring of Mrk 817 will continue during NICER Cycle 4, and we propose for NICER monitoring with a 2-day cadence in order to continue to track the variability of this obscuring gas and, combining with longer wavelength data, to better understand its nature and location.
Obsid RA DEC l b Start End Exposure Number of
Modules		 Number of
Processing		 Status of
Processing		 Date of
Processing		 Public
date
5596010101 219.089 58.790 100.297 53.482 59639.3752 59639.3963 1233.0 52 6 VALIDATED 59649.8 59833
5596010201 219.092 58.794 100.299 53.478 59641.5817 59641.6544 1252.0 52 5 VALIDATED 59652.3 59835
5596010301 219.092 58.794 100.300 53.478 59643.1271 59643.2661 1680.0 52 2 VALIDATED 59652.4 59837
5596010401 219.092 58.794 100.299 53.479 59645.3810 59645.3968 1130.0 52 5 VALIDATED 59659.5 59839
5596010501 219.092 58.794 100.300 53.478 59646.9946 59647.0097 1215.0 52 5 VALIDATED 59659.6 59841
5596010601 219.092 58.794 100.300 53.479 59648.9882 59649.0097 1777.0 52 5 VALIDATED 59662.3 59843
5596010701 219.092 58.794 100.300 53.478 59650.9891 59651.0100 1697.0 52 5 VALIDATED 59663.7 59845
5596010801 219.091 58.793 100.299 53.479 59653.2395 59653.2561 1299.0 52 5 VALIDATED 59665.0 59847
5596010901 219.090 58.794 100.300 53.479 59655.0463 59655.0750 1932.0 52 3 VALIDATED 59666.1 59849
5596011101 219.092 58.794 100.299 53.479 59659.1748 59659.1896 943.0 52 5 VALIDATED 59670.9 59853
5596011201 219.091 58.794 100.300 53.479 59660.9817 59660.9985 1393.0 52 5 VALIDATED 59671.0 59854
5596011301 219.091 58.792 100.298 53.480 59662.9884 59662.9979 751.0 52 4 VALIDATED 59672.9 59856
5596011302 219.088 58.793 100.301 53.481 59663.0458 59663.0655 1557.0 52 5 VALIDATED 59673.0 59857
5596011401 219.091 58.794 100.301 53.479 59665.0544 59665.0715 1351.0 52 5 VALIDATED 59675.9 59859
5596011501 219.091 58.794 100.300 53.479 59667.4320 59667.5066 1573.0 52 4 VALIDATED 59676.9 59861
5596011601 219.091 58.794 100.301 53.478 59669.2378 59669.2542 802.0 52 5 VALIDATED 59678.9 59863
5596011701 219.091 58.794 100.300 53.478 59671.0520 59671.0676 901.0 52 5 VALIDATED 59681.2 59865
5596012101 219.088 58.792 100.300 53.481 59679.0346 59679.1706 0.0 52 6 VALIDATED 59688.7 59873
5596012201 219.095 58.792 100.295 53.479 59681.0942 59681.1118 0.0 52 6 VALIDATED 59690.7 59875
5596012301 219.092 58.795 100.300 53.478 59683.1556 59683.1775 878.0 52 6 VALIDATED 59692.7 59877
5596012401 219.087 58.797 100.306 53.478 59685.0876 59685.1106 909.0 52 6 VALIDATED 59694.7 59879
5596012501 219.093 58.795 100.299 53.478 59687.5951 59687.6090 896.0 52 7 VALIDATED 59697.7 59881
5596012601 219.093 58.795 100.299 53.478 59689.9229 59689.9928 762.0 52 7 VALIDATED 59699.7 59883
5596012602 219.093 58.795 100.300 53.478 59690.0509 59690.0574 439.0 52 6 VALIDATED 59699.7 59884
5596012701 219.093 58.794 100.299 53.478 59691.9125 59691.9287 1166.0 52 7 VALIDATED 59702.8 59885
5596012801 219.093 58.795 100.299 53.478 59693.8495 59693.8664 1272.0 52 6 VALIDATED 59704.7 59887
5596012901 219.093 58.794 100.299 53.478 59695.4625 59695.4884 2052.0 52 5 VALIDATED 59704.9 59889
5596013001 219.093 58.794 100.299 53.478 59697.0265 59697.1007 1377.0 52 6 VALIDATED 59706.7 59891
5596013101 219.094 58.793 100.297 53.479 59698.9595 59698.9729 847.0 52 5 VALIDATED 59709.9 59892
5596013102 219.094 58.794 100.298 53.478 59699.0238 59699.0375 880.0 52 4 VALIDATED 59709.9 59893
5596013201 219.093 58.794 100.299 53.478 59700.9639 59700.9720 528.0 52 4 VALIDATED 59711.7 59894
5596013202 219.093 58.793 100.297 53.479 59701.0262 59701.0375 602.0 52 4 VALIDATED 59711.7 59895
5596013301 219.094 58.793 100.298 53.479 59703.1484 59703.1671 1356.0 52 6 VALIDATED 59713.7 59897
5596013401 219.092 58.793 100.298 53.479 59705.2690 59705.2954 2087.0 52 4 VALIDATED 59714.7 59899
5596013501 219.092 58.794 100.299 53.478 59707.3340 59707.3569 1635.0 52 5 VALIDATED 59716.7 59901
5596013601 219.092 58.794 100.299 53.479 59709.1416 59709.1614 1527.0 52 6 VALIDATED 59718.7 59903
5596013701 219.092 58.794 100.300 53.478 59711.2769 59711.2937 1191.0 52 6 VALIDATED 59720.7 59905
5596013801 219.093 58.793 100.298 53.479 59713.0073 59713.0192 974.0 52 6 VALIDATED 59722.6 59907
5596013901 219.092 58.794 100.300 53.479 59715.1475 59715.1641 1133.0 52 6 VALIDATED 59724.7 59909
5596014001 219.092 58.794 100.299 53.479 59717.2659 59717.3396 1291.0 52 6 VALIDATED 59726.7 59911
5596014101 219.091 58.792 100.298 53.481 59719.2667 59719.3419 1044.0 52 5 VALIDATED 59732.9 59913
5596014201 219.092 58.794 100.300 53.479 59721.2056 59721.2303 1896.0 52 4 VALIDATED 59733.0 59915
5596014301 219.093 58.793 100.298 53.479 59723.2007 59723.2174 1294.0 52 4 VALIDATED 59734.9 59917
5596014401 219.091 58.794 100.300 53.479 59725.0051 59725.0350 2264.0 52 4 VALIDATED 59740.8 59919
5596014501 219.092 58.794 100.300 53.479 59727.0710 59727.1009 2008.0 52 3 VALIDATED 59736.9 59921
5596014601 219.091 58.793 100.298 53.480 59729.3286 59729.3450 1243.0 52 4 VALIDATED 59739.1 59923
5596014701 219.090 58.793 100.299 53.480 59731.2651 59731.2805 1263.0 52 4 VALIDATED 59741.0 59925
5596014801 219.092 58.794 100.299 53.479 59733.1343 59733.1623 2152.0 52 4 VALIDATED 59743.9 59927
5596014901 219.091 58.792 100.298 53.480 59735.4557 59735.4741 1368.0 52 4 VALIDATED 59745.7 59929
5596015001 219.091 58.794 100.300 53.478 59737.2627 59737.2873 2006.0 52 5 VALIDATED 59748.2 59931
5596015101 219.091 58.794 100.300 53.479 59739.3267 59739.3998 1306.0 52 4 VALIDATED 59752.1 59933
5596015201 219.091 58.794 100.300 53.479 59741.5312 59741.7926 484.0 52 4 VALIDATED 59753.8 59935
5596015301 219.087 58.792 100.300 53.482 59743.3395 59743.6657 5.0 52 5 VALIDATED 59754.0 59937
5596015601 219.090 58.795 100.302 53.478 59749.1260 59749.2000 895.0 52 4 VALIDATED 59759.2 59943
5596016101 219.095 58.797 100.300 53.476 59759.8208 59759.8898 1047.0 52 3 VALIDATED 59769.9 59953
5596016201 219.093 58.795 100.300 53.478 59761.1039 59761.1215 878.0 52 5 VALIDATED 59772.7 59955
5596016301 219.094 58.795 100.300 53.477 59763.3630 59763.3833 1433.0 52 4 VALIDATED 59772.8 59957
5596016401 219.095 58.793 100.297 53.478 59765.5653 59765.5799 686.0 52 5 VALIDATED 59775.9 59959
5596016501 219.094 58.794 100.298 53.478 59767.5720 59767.7086 1302.0 52 5 VALIDATED 59779.2 59961
5596016601 219.093 58.794 100.299 53.479 59769.3104 59769.3854 356.0 52 4 VALIDATED 59779.3 59963
5596016701 219.093 58.794 100.299 53.478 59771.6813 59771.7074 2142.0 52 6 VALIDATED 59784.8 59965
5596016801 219.093 58.794 100.299 53.478 59773.6218 59773.6424 1685.0 52 4 VALIDATED 59784.9 59967
5596016901 219.092 58.794 100.299 53.479 59775.3556 59775.3843 2079.0 52 5 VALIDATED 59796.9 59969
5596017001 219.093 58.793 100.298 53.479 59777.4194 59777.4370 1337.5 52 3 VALIDATED 59786.9 59971
5596017101 219.095 58.793 100.296 53.478 59779.4850 59779.5041 1583.0 52 7 VALIDATED 59794.0 59973
5596017201 219.092 58.794 100.299 53.479 59781.5458 59781.5778 2424.5 52 6 VALIDATED 59792.1 59975
5596017301 219.092 58.795 100.300 53.478 59783.2262 59783.2444 1490.0 52 5 VALIDATED 59794.1 59977
5596017401 219.093 58.794 100.299 53.478 59785.3697 59785.4477 1375.0 52 5 VALIDATED 59800.1 59979
5596017501 219.094 58.794 100.298 53.478 59787.4827 59787.5595 1302.0 52 5 VALIDATED 59800.3 59981
5596017601 219.092 58.794 100.299 53.479 59789.0294 59789.1718 1770.0 52 3 VALIDATED 59797.4 59983
5596017701 219.093 58.794 100.299 53.478 59791.3513 59791.4278 1339.0 52 4 VALIDATED 59802.8 59985
5596017801 219.093 58.793 100.298 53.479 59793.3597 59793.4942 1318.0 52 5 VALIDATED 59806.9 59987
5596017901 219.092 58.794 100.300 53.478 59795.2213 59795.3048 1991.0 52 5 VALIDATED 59805.1 59989
5596018001 219.092 58.794 100.299 53.479 59797.2203 59797.2389 1143.0 52 4 VALIDATED 59807.1 59991
5596018101 219.092 58.794 100.299 53.479 59799.0905 59799.1152 1337.0 52 5 VALIDATED 59809.1 59993
5596018201 219.091 58.794 100.300 53.479 59801.4123 59801.4300 1163.0 52 4 VALIDATED 59810.8 59995
5596018301 219.092 58.794 100.299 53.478 59803.1537 59803.1722 984.0 52 4 VALIDATED 59814.0 59997
5596018401 219.091 58.794 100.300 53.479 59805.1530 59805.1706 891.0 52 5 VALIDATED 59816.8 59999
5596018501 219.091 58.794 100.300 53.479 59807.3451 59807.3627 862.0 52 5 VALIDATED 59817.9 60001
5596018601 219.091 58.794 100.300 53.479 59809.2153 59809.2412 695.0 52 4 VALIDATED 59819.1 60003
5596018701 219.090 58.794 100.301 53.479 59811.2791 59811.3001 659.0 52 5 VALIDATED 59821.1 60005
5596018801 219.091 58.794 100.300 53.479 59813.2123 59813.2324 442.0 52 4 VALIDATED 59822.9 60007
5596018901 219.091 58.794 100.301 53.479 59814.8970 59814.9690 0.0 52 5 VALIDATED 59824.8 60008
5596019001 219.090 58.795 100.302 53.478 59817.0801 59817.1055 64.0 52 4 VALIDATED 59829.4 60011
5596019101 219.091 58.794 100.300 53.479 59819.0743 59819.1037 548.0 52 4 VALIDATED 59830.8 60013
5596019201 219.076 58.797 100.314 53.481 59820.9588 59820.9664 0.0 52 4 VALIDATED 59830.9 60014
5596019301 219.092 58.795 100.300 53.478 59824.5493 59824.5627 877.0 52 5 VALIDATED 59836.6 60018
5596019501 219.092 58.795 100.301 53.478 59827.4486 59827.5891 1149.0 52 4 VALIDATED 59836.8 60021
5596019601 219.093 58.794 100.299 53.478 59829.0720 59829.1456 1195.0 52 7 VALIDATED 59850.7 60023
5596019701 219.094 58.794 100.298 53.478 59831.4542 59831.4688 697.0 52 4 VALIDATED 59840.8 60025
5596019801 219.093 58.794 100.299 53.478 59833.1275 59833.1470 1560.0 52 5 VALIDATED 59842.9 60027
5596019901 219.093 58.795 100.299 53.478 59835.4437 59835.4662 1171.0 52 5 VALIDATED 59846.1 60029