NICER observation list: Target ID 559602

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
5596020101 219.093 58.794 100.299 53.478 59837.5095 59837.5287 1122.0 52 4 VALIDATED 59847.0 60031
5596020201 219.093 58.794 100.299 53.478 59839.1181 59839.1407 1042.0 52 6 VALIDATED 59848.9 60033
5596020301 219.093 58.794 100.299 53.478 59841.3803 59841.3974 687.0 52 5 VALIDATED 59850.8 60035
5596020401 219.094 58.794 100.298 53.478 59843.7049 59843.7817 1008.0 52 6 VALIDATED 59855.1 60037
5596020501 219.096 58.796 100.298 53.476 59845.6902 59845.7071 0.0 52 5 VALIDATED 59855.2 60039
5596020601 219.094 58.794 100.298 53.478 59847.6947 59847.7704 34.0 52 8 VALIDATED 59859.8 60041
5596020701 219.093 58.794 100.299 53.478 59849.0495 59849.1375 697.0 52 5 VALIDATED 59858.8 60043
5596020801 219.095 58.794 100.297 53.477 59851.6900 59851.7074 314.0 52 4 VALIDATED 59861.9 60045
5596020901 219.093 58.794 100.299 53.478 59853.1056 59853.1324 627.0 52 5 VALIDATED 59863.8 60047
5596021001 219.092 58.794 100.299 53.479 59855.3631 59855.3933 491.0 52 6 VALIDATED 59865.8 60049
5596021101 219.092 58.794 100.299 53.478 59857.6208 59857.6438 580.5 52 6 VALIDATED 59869.8 60051
5596021201 219.092 58.794 100.299 53.478 59859.5563 59859.5780 454.5 52 7 VALIDATED 59878.7 60053
5596021301 219.092 58.794 100.300 53.478 59861.5566 59861.5799 830.5 52 5 VALIDATED 59871.7 60055
5596021401 219.093 58.794 100.299 53.478 59863.4274 59863.5056 594.0 52 6 VALIDATED 59873.8 60057
5596021501 219.092 58.794 100.299 53.479 59865.6859 59865.6972 366.0 52 6 VALIDATED 59875.8 60059
5596021601 219.092 58.794 100.299 53.479 59867.7491 59867.8243 350.0 52 6 VALIDATED 59877.8 60061
5596021701 219.092 58.794 100.299 53.479 59869.1678 59869.3060 701.0 52 6 VALIDATED 59878.8 60063
5596021801 219.092 58.793 100.298 53.479 59871.0375 59871.0556 995.5 52 6 VALIDATED 59880.7 60065
5596021901 219.093 58.794 100.299 53.478 59873.1653 59873.1810 1101.0 52 6 VALIDATED 59882.8 60067
5596022001 219.091 58.794 100.300 53.479 59875.0353 59875.0528 1076.0 52 6 VALIDATED 59884.8 60069
5596022101 219.091 58.794 100.300 53.479 59877.0347 59877.0664 1433.0 52 6 VALIDATED 59886.8 60071
5596022201 219.091 58.794 100.300 53.479 59879.1002 59879.1222 1475.0 52 6 VALIDATED 59888.8 60073
5596022301 219.091 58.794 100.300 53.479 59881.1049 59881.1245 1056.0 52 6 VALIDATED 59893.3 60075
5596022401 219.091 58.793 100.299 53.480 59883.2354 59883.2524 944.0 52 3 VALIDATED 59888.1 60077
5596022501 219.091 58.794 100.300 53.479 59885.7488 59885.7669 1261.0 52 6 VALIDATED 59898.1 60079
5596022601 219.091 58.794 100.300 53.479 59887.0324 59887.1035 1244.0 52 4 VALIDATED 59898.3 60081
5596022701 219.091 58.794 100.300 53.479 59891.3537 59891.3690 530.0 52 4 VALIDATED 59901.9 60085
5596022801 219.092 58.794 100.300 53.478 59891.8678 59891.9412 928.0 52 4 VALIDATED 59901.9 60085
5596022901 219.085 58.794 100.303 53.481 59893.6757 59893.6928 1284.0 52 4 VALIDATED 59905.1 60087
5596023001 219.092 58.794 100.299 53.478 59895.4222 59895.4370 796.0 52 3 VALIDATED 59906.9 60089
5596023101 219.086 58.793 100.302 53.482 59896.9069 59896.9794 1004.0 52 4 VALIDATED 59907.0 60090
5596023102 219.089 58.794 100.302 53.480 59897.0331 59897.0431 656.0 52 4 VALIDATED 59907.0 60091
5596023201 219.086 58.795 100.305 53.480 59899.2817 59899.2963 796.0 52 4 VALIDATED 59908.9 60093
5596023301 219.091 58.799 100.305 53.475 59901.0257 59901.0426 1112.0 52 4 VALIDATED 59912.0 60095
5596023401 219.092 58.794 100.300 53.478 59902.7042 59902.7789 1173.5 52 2 VALIDATED 59907.5 60096
5596023601 219.102 58.790 100.288 53.478 59906.4948 59906.5044 0.0 52 4 VALIDATED 59919.0 60100
5596023701 219.093 58.794 100.299 53.478 59909.0068 59909.1470 1465.0 52 2 VALIDATED 59915.1 60103
5596023801 219.092 58.794 100.299 53.478 59911.2634 59911.2796 1265.0 52 5 VALIDATED 59924.2 60105
5596023901 219.093 58.794 100.299 53.478 59913.3258 59913.3435 1369.0 52 4 VALIDATED 59924.3 60107
5596024001 219.094 58.794 100.298 53.478 59915.1310 59915.1550 1857.0 52 7 VALIDATED 59935.8 60109
5596024101 219.092 58.794 100.300 53.478 59917.0664 59917.0904 1896.0 52 4 VALIDATED 59934.7 60111
5596024201 219.096 58.794 100.296 53.477 59919.1965 59919.2127 1322.0 52 4 VALIDATED 59934.8 60113
5596024301 219.093 58.793 100.298 53.479 59921.1954 59921.2241 2333.0 52 5 VALIDATED 59936.0 60115
5596024401 219.094 58.794 100.298 53.478 59923.8400 59923.8592 1577.0 52 4 VALIDATED 59936.2 60117
5596024501 219.093 58.793 100.298 53.479 59925.8398 59925.8593 1530.0 52 3 VALIDATED 59938.0 60119
5596024601 219.092 58.794 100.300 53.478 59927.7743 59927.7949 1662.0 52 1 VALIDATED 59936.7 60121
5596024701 219.092 58.794 100.300 53.479 59929.7703 59929.8026 2466.0 52 3 VALIDATED 59940.1 60123
5596024801 219.092 58.794 100.300 53.478 59931.7198 59931.7380 1340.0 52 4 VALIDATED 59941.9 60125
5596024901 219.092 58.794 100.300 53.479 59933.5815 59933.6083 1750.0 52 3 VALIDATED 59943.9 60127
5596025001 219.094 58.794 100.298 53.478 59935.7685 59935.7843 1041.0 52 4 VALIDATED 59946.0 60129
5596025101 219.092 58.794 100.300 53.478 59937.2641 59937.2850 1554.0 52 4 VALIDATED 59947.8 60131
5596025201 219.093 58.794 100.298 53.478 59939.0597 59939.0912 2531.0 52 5 VALIDATED 59950.8 60133
5596025301 219.093 58.794 100.299 53.478 59941.3186 59941.3488 2190.0 52 4 VALIDATED 59951.1 60135
5596025401 219.091 58.794 100.300 53.479 59943.2546 59943.2851 2582.0 52 4 VALIDATED 59952.9 60137
5596025501 219.092 58.794 100.300 53.479 59945.1998 59945.2213 1803.0 52 6 VALIDATED 59956.1 60139
5596025701 219.092 58.794 100.300 53.478 59948.9935 59949.0194 2023.0 52 8 VALIDATED 59970.4 60143
5596025801 219.092 58.794 100.299 53.478 59951.0586 59951.0886 2480.0 52 5 VALIDATED 59969.3 60145
5596025901 219.091 58.794 100.300 53.479 59952.7998 59952.8208 1701.0 52 5 VALIDATED 59969.4 60146
5596026001 219.086 58.793 100.302 53.482 59955.0590 59955.0861 2221.0 52 3 VALIDATED 59970.7 60149
5596026101 219.085 58.793 100.303 53.482 59957.1227 59957.1488 2021.0 52 3 VALIDATED 59969.7 60151
5596026201 219.090 58.795 100.302 53.478 59959.0660 59959.0829 1166.0 52 3 VALIDATED 59975.1 60153
5596026301 219.090 58.795 100.301 53.478 59960.9909 59961.0167 2082.0 52 2 VALIDATED 59975.2 60155
5596026501 219.084 58.794 100.305 53.481 59965.2507 59965.2688 1453.0 52 3 VALIDATED 59981.9 60159
5596026601 219.092 58.795 100.300 53.478 59967.2431 59967.4495 1220.5 52 1 VALIDATED 59975.8 60161
5596026701 219.085 58.794 100.304 53.481 59969.5729 59969.6465 1559.0 51 1 VALIDATED 59976.0 60163
5596027001 219.092 58.794 100.300 53.478 59975.6793 59975.7516 912.0 51 4 VALIDATED 59988.2 60169
5596027101 219.092 58.797 100.302 53.477 59977.4181 59977.4359 951.0 51 5 VALIDATED 59990.7 60171
5596027201 219.093 58.795 100.299 53.478 59979.2877 59979.3067 1536.0 51 1 VALIDATED 59984.4 60173
5596027301 219.098 58.796 100.298 53.475 59981.2863 59981.3102 1895.0 51 5 VALIDATED 59992.0 60175
5596027401 219.095 58.793 100.297 53.478 59983.2208 59983.2444 1919.0 51 6 VALIDATED 59994.7 60177
5596027501 219.094 58.795 100.299 53.477 59985.0908 59985.1091 1358.0 51 5 VALIDATED 59997.2 60179
5596027601 219.095 58.796 100.299 53.476 59987.0234 59987.0389 1219.0 51 5 VALIDATED 59998.9 60181
5596027701 219.093 58.794 100.299 53.478 59989.0190 59989.0347 1194.0 51 3 VALIDATED 59995.0 60183
5596027801 219.092 58.794 100.299 53.478 59991.3414 59991.3628 1266.0 51 5 VALIDATED 60000.9 60185
5596027901 219.093 58.794 100.299 53.478 59992.8238 59992.8429 1514.0 51 5 VALIDATED 60002.8 60186
5596027902 219.093 58.794 100.299 53.478 59993.3392 59993.3535 861.0 51 4 VALIDATED 60002.9 60187
5596028001 219.092 58.794 100.299 53.479 59995.7257 59995.7579 2601.0 51 5 VALIDATED 60006.8 60189
5596028101 219.092 58.794 100.300 53.478 59997.7907 59997.8150 1890.0 51 5 VALIDATED 60010.3 60191
5596028201 219.093 58.794 100.298 53.478 59999.7338 59999.7511 1313.0 51 2 VALIDATED 60005.3 60193
5596028301 219.092 58.794 100.299 53.478 60001.7270 60001.7482 1643.0 51 6 VALIDATED 60014.7 60195
5596028401 219.092 58.794 100.299 53.478 60003.4706 60003.4913 1537.0 51 1 VALIDATED 60011.4 60197