NICER observation list: Target ID 672301

Abstract

1ES 1927+654 is a paradigm-defying AGN and one of the most peculiar X-ray nuclear transients. During a recent, multi-year outburst, 1ES 1927+654 underwent extreme X-ray spectral changes, including the first-observed destruction and recreation of the X-ray corona, possibly due to a TDE in an AGN accretion disk. Despite rebuilding its corona, this unique AGN still appears softer and with different variability properties than its pre-outburst state. With continued NICER monitoring, we will study the X-ray and UV variability and monitor X-ray spectral changes to assess the post-outburst nature of this NICER legacy target. We propose a one year monitoring campaign with a weekly 1 ks NICER observation and a 1 ks Swift observation every 2 weeks (totaling 52 ks with NICER and 26 ks with Swift).
Obsid RA DEC l b Start End Exposure Number of
Modules		 Number of
Processing		 Status of
Processing		 Date of
Processing		 Public
date
6723010101 291.831 65.565 96.984 20.961 60004.8293 60004.8449 1163.0 51 4 VALIDATED 60016.9 60018
6723010102 291.833 65.564 96.984 20.960 60353.4620 60353.4653 190.0 50 6 VALIDATED 60370.2 60367
6723010201 291.831 65.565 96.984 20.961 60011.2912 60011.3097 1418.0 51 3 VALIDATED 60020.5 60025
6723010301 291.831 65.565 96.984 20.961 60018.3155 60018.3405 2031.0 51 4 VALIDATED 60027.9 60032
6723010401 291.827 65.566 96.984 20.963 60025.2163 60025.2338 1208.0 51 5 VALIDATED 60036.5 60039
6723010501 291.832 65.565 96.985 20.961 60032.7057 60032.9623 3600.0 51 3 VALIDATED 60042.4 60046
6723010601 291.832 65.565 96.984 20.960 60040.1689 60040.1843 1210.0 51 4 VALIDATED 60053.9 60054
6723010602 291.832 65.565 96.984 20.960 60053.0757 60053.0942 1545.0 51 7 VALIDATED 60068.1 60067
6723010701 291.832 65.565 96.984 20.961 60060.3676 60060.4465 1825.0 51 4 VALIDATED 60070.1 60074
6723010801 291.831 65.565 96.984 20.961 60067.7787 60067.7984 1572.0 51 7 VALIDATED 60078.9 60081
6723010901 291.831 65.565 96.984 20.961 60074.1523 60074.1844 2624.0 51 5 VALIDATED 60088.0 60088
6723011001 291.827 65.563 96.981 20.962 60081.3138 60081.5167 3283.0 51 3 VALIDATED 60094.5 60095
6723011101 291.825 65.565 96.983 20.963 60089.1803 60089.2532 647.0 0 6 VALIDATED 60113.5 60103
6723011301 291.837 65.563 96.983 20.958 60101.8145 60101.9493 182.0 47 5 VALIDATED 60113.7 60115
6723011302 291.836 65.567 96.987 20.960 60102.5270 60102.5317 0.0 49 5 VALIDATED 60115.1 60116
6723011401 291.832 65.565 96.984 20.961 60109.0821 60109.3444 623.0 51 4 VALIDATED 60121.6 60123
6723011501 291.833 65.566 96.985 20.960 60116.5590 60116.6359 1977.0 51 5 VALIDATED 60129.4 60130
6723011601 291.833 65.566 96.985 20.960 60124.1648 60124.2400 1110.0 51 3 VALIDATED 60134.0 60138
6723011701 291.832 65.565 96.984 20.961 60130.1727 60130.1910 1341.0 42 3 VALIDATED 60140.2 60144
6723011801 291.831 65.565 96.984 20.961 60137.0060 60137.0294 1954.0 42 4 VALIDATED 60147.3 60151
6723011901 291.831 65.565 96.984 20.961 60144.3116 60144.3863 1575.0 51 4 VALIDATED 60157.6 60158
6723012001 291.834 65.563 96.982 20.959 60151.9190 60151.9877 1195.0 51 4 VALIDATED 60164.3 60165
6723012101 291.830 65.565 96.984 20.961 60158.0474 60158.1847 1747.0 51 3 VALIDATED 60172.3 60172
6723012201 291.830 65.565 96.984 20.961 60165.3842 60165.4569 0.0 36 3 VALIDATED 60178.1 60179
6723012301 291.831 65.565 96.984 20.961 60172.4136 60172.4875 0.0 42 4 VALIDATED 60185.1 60186
6723012401 291.833 65.566 96.986 20.961 60181.4940 60181.6319 1217.0 51 4 VALIDATED 60193.0 60195
6723012501 291.832 65.565 96.984 20.960 60186.1396 60186.1567 1207.2 51 3 VALIDATED 60199.8 60200
6723012601 291.844 65.569 96.989 20.957 60192.9785 60192.9880 675.0 51 3 VALIDATED 60206.0 60206
6723012602 291.833 65.565 96.984 20.960 60193.0435 60193.0525 677.2 51 3 VALIDATED 60206.1 60207
6723012701 291.832 65.565 96.984 20.960 60200.9118 60200.9882 1790.0 51 3 VALIDATED 60211.6 60214
6723012801 291.831 65.565 96.984 20.961 60214.2771 60214.3500 1018.0 51 4 VALIDATED 60227.9 60228
6723013001 291.831 65.564 96.983 20.961 60228.1916 60228.8583 1749.0 42 4 VALIDATED 60239.9 60242
6723013101 291.830 65.565 96.984 20.961 60235.1555 60235.1745 0.0 42 3 VALIDATED 60246.0 60249
6723013301 291.831 65.565 96.984 20.961 60248.4887 60248.5035 1045.0 51 5 VALIDATED 60262.0 60262
6723013401 291.827 65.570 96.988 20.964 60255.0141 60255.0907 1529.2 51 3 VALIDATED 60265.1 60269
6723013501 291.832 65.565 96.984 20.960 60262.6761 60262.7005 1912.0 51 6 VALIDATED 60279.6 60276
6723013601 291.838 65.564 96.984 20.958 60269.5792 60269.6573 1374.0 42 8 VALIDATED 60290.1 60283
6723013701 291.832 65.565 96.984 20.961 60276.0454 60276.3081 1802.0 51 3 VALIDATED 60287.9 60290
6723013801 291.831 65.565 96.984 20.961 60283.2530 60283.2787 1544.0 50 4 VALIDATED 60294.0 60297
6723013901 291.831 65.565 96.984 20.961 60290.0981 60290.1645 259.0 41 4 VALIDATED 60300.0 60304
6723014001 291.830 65.565 96.983 20.961 60297.3662 60297.5035 1335.2 50 4 VALIDATED 60311.2 60311
6723014101 291.830 65.565 96.984 20.961 60304.4660 60304.4875 449.5 40 3 VALIDATED 60316.3 60318
6723014201 291.831 65.565 96.984 20.961 60311.6164 60311.6315 1136.0 50 3 VALIDATED 60322.3 60325
6723014301 291.832 65.566 96.985 20.961 60318.2634 60318.3447 2647.0 50 6 VALIDATED 60334.1 60332
6723014401 291.831 65.570 96.989 20.963 60325.0942 60325.1141 1500.0 50 3 VALIDATED 60339.1 60339
6723014501 291.833 65.565 96.984 20.960 60332.3125 60332.3894 0.0 41 3 VALIDATED 60345.9 60346
6723014601 291.832 65.565 96.984 20.961 60339.2321 60339.6870 1289.0 50 4 VALIDATED 60352.5 60353
6723014701 291.832 65.565 96.984 20.960 60346.1201 60346.1361 223.0 41 3 VALIDATED 60357.3 60360
6723014801 291.832 65.565 96.984 20.960 60353.2037 60353.7238 1236.0 50 6 VALIDATED 60370.1 60367
6723014901 291.831 65.564 96.983 20.961 60360.3657 60360.5674 1417.5 50 5 VALIDATED 60379.6 60374
6723015001 291.830 65.564 96.983 20.961 60367.0088 60367.0815 1466.0 50 2 VALIDATED 60385.1 60381