NICER observation list: Target ID 260201
- Proposal Number = 2602
- Target ID = 260201
- Target Name = Mkn_876
- Proposal Title = SOLVING THE X-RAY - OPTICAL ACCRETION DISK REPROCESSING PUZZLE WITH TIME-RESOLVED NICER X-RAY SPECTROSCOPY OF MRK 876
- PI = EDWARD CACKETT
- Proposal Category = ACTIVE GALAXIES AND QUASARS
- Cycle number = 2
- Observation Type = NOR
Abstract
X-ray/UV/optical AGN monitoring shows consistent behavior within the UV/optical but a disconnect between X-ray and UV/optical broadband flux variations that challenges the standard reprocessing model. Mrk 876 lies in the TESS continuous viewng zone providing a high S/N light curve sampled every 30 minutes for ~1 year. During this period we will obtain simultaneous monitoring from the ground (approved) and Swift (pending), but Swift only provides a low S/N X-ray light curve. As NICER is a factor of ~20 more sensitive, it allows monitoring of individual components in the complex X-ray spectrum. By correlating these components (instead of broadband X-ray fluxes) with the UV/optical, NICER can break this degeneracy and allow us to determine which X-ray component drives the disk variability.
| Obsid |
RA |
DEC |
l |
b |
Start |
End |
Exposure |
Number of modules |
Status of Processing |
Date of Processing |
Public date |
| 2602010101 |
243.488 |
65.719 |
98.26933 |
40.37613 |
58635.6486 |
58635.6780 |
2252.00000 |
52 |
VALIDATED |
58639.7 |
58649 |
| 2602010201 |
243.486 |
65.717 |
98.26669 |
40.37787 |
58637.4530 |
58637.4817 |
2208.00000 |
52 |
VALIDATED |
58642.9 |
58651 |
| 2602010301 |
243.488 |
65.719 |
98.26937 |
40.37612 |
58639.3221 |
58639.3500 |
2147.00000 |
52 |
VALIDATED |
58643.9 |
58653 |
| 2602010401 |
243.487 |
65.719 |
98.26966 |
40.37611 |
58641.1907 |
58641.2183 |
2125.00000 |
52 |
VALIDATED |
58645.6 |
58655 |
| 2602010501 |
243.487 |
65.720 |
98.26982 |
40.37610 |
58643.1322 |
58643.2153 |
2404.00000 |
52 |
VALIDATED |
58648.8 |
58657 |
| 2602010601 |
243.489 |
65.715 |
98.26414 |
40.37738 |
58645.0124 |
58645.4056 |
2855.00000 |
52 |
VALIDATED |
58652.6 |
58659 |
| 2602010602 |
243.487 |
65.719 |
98.26969 |
40.37623 |
58785.3005 |
58785.3194 |
1562.00000 |
52 |
VALIDATED |
58790.8 |
58799 |
| 2602010701 |
243.484 |
65.719 |
98.27010 |
40.37759 |
58646.9242 |
58646.9984 |
849.00000 |
52 |
VALIDATED |
58652.9 |
58660 |
| 2602010702 |
243.481 |
65.720 |
98.27224 |
40.37818 |
58647.0530 |
58647.1275 |
714.00000 |
52 |
VALIDATED |
58653.7 |
58661 |
| 2602010703 |
243.487 |
65.720 |
98.26982 |
40.37610 |
58787.1725 |
58787.1889 |
1381.00000 |
52 |
VALIDATED |
58793.1 |
58801 |
| 2602010801 |
243.486 |
65.720 |
98.27049 |
40.37649 |
58649.0509 |
58649.1294 |
1825.00000 |
52 |
VALIDATED |
58655.7 |
58663 |
| 2602010802 |
243.487 |
65.720 |
98.27021 |
40.37614 |
58789.0940 |
58789.1222 |
1832.00000 |
52 |
VALIDATED |
58795.1 |
58803 |
| 2602010901 |
243.484 |
65.720 |
98.27083 |
40.37700 |
58651.0470 |
58651.1296 |
951.00000 |
52 |
VALIDATED |
58658.9 |
58665 |
| 2602010902 |
243.487 |
65.719 |
98.26965 |
40.37606 |
58791.0915 |
58791.1153 |
1833.00000 |
52 |
VALIDATED |
58796.2 |
58805 |
| 2602011001 |
243.476 |
65.719 |
98.27189 |
40.38058 |
58653.4941 |
58653.5160 |
383.00000 |
52 |
VALIDATED |
58659.9 |
58667 |
| 2602011101 |
243.488 |
65.720 |
98.26977 |
40.37575 |
58655.1012 |
58655.1271 |
1313.00000 |
52 |
VALIDATED |
58660.9 |
58669 |
| 2602011201 |
243.484 |
65.721 |
98.27207 |
40.37665 |
58657.0389 |
58657.0590 |
638.00000 |
52 |
VALIDATED |
58662.8 |
58671 |
| 2602011301 |
243.493 |
65.721 |
98.27023 |
40.37344 |
58659.1003 |
58659.1181 |
0.00000 |
52 |
VALIDATED |
58664.8 |
58673 |
| 2602011401 |
243.489 |
65.720 |
98.26984 |
40.37531 |
58660.9090 |
58660.9817 |
0.00000 |
52 |
VALIDATED |
58664.9 |
58674 |
| 2602011601 |
243.489 |
65.720 |
98.27003 |
40.37538 |
58665.0142 |
58665.2160 |
1179.00000 |
52 |
VALIDATED |
58669.7 |
58679 |
| 2602011701 |
243.489 |
65.720 |
98.26947 |
40.37545 |
58667.0760 |
58667.1534 |
1598.00000 |
52 |
VALIDATED |
58671.6 |
58681 |
| 2602011801 |
243.495 |
65.720 |
98.26828 |
40.37328 |
58669.3298 |
58669.3539 |
1770.00000 |
52 |
VALIDATED |
58673.6 |
58683 |
| 2602011901 |
243.490 |
65.719 |
98.26851 |
40.37525 |
58671.3294 |
58671.3560 |
2090.00000 |
52 |
VALIDATED |
58675.6 |
58685 |
| 2602011902 |
243.487 |
65.723 |
98.27362 |
40.37481 |
58673.6051 |
58673.6116 |
6.00000 |
0 |
VALIDATED |
58677.6 |
58687 |
| 2602012001 |
243.488 |
65.721 |
98.27096 |
40.37527 |
58673.6690 |
58673.8694 |
1018.00000 |
52 |
VALIDATED |
58677.6 |
58687 |
| 2602012101 |
243.489 |
65.719 |
98.26859 |
40.37572 |
58675.6493 |
58675.6741 |
1859.00000 |
52 |
VALIDATED |
58679.7 |
58689 |
| 2602012201 |
243.489 |
65.722 |
98.27253 |
40.37434 |
58677.0199 |
58677.9102 |
2963.00000 |
52 |
VALIDATED |
58681.6 |
58691 |
| 2602012301 |
243.489 |
65.719 |
98.26874 |
40.37558 |
58678.9532 |
58678.9581 |
264.00000 |
52 |
VALIDATED |
58682.9 |
58692 |
| 2602012302 |
243.489 |
65.719 |
98.26845 |
40.37577 |
58679.0178 |
58679.2016 |
1547.00000 |
52 |
VALIDATED |
58684.5 |
58693 |
| 2602012401 |
243.490 |
65.719 |
98.26803 |
40.37542 |
58681.5731 |
58681.6503 |
1479.00000 |
52 |
VALIDATED |
58687.8 |
58695 |
| 2602012501 |
243.490 |
65.718 |
98.26755 |
40.37546 |
58682.9928 |
58683.3456 |
3523.00000 |
52 |
VALIDATED |
58688.6 |
58697 |
| 2602012601 |
243.490 |
65.719 |
98.26827 |
40.37557 |
58685.0088 |
58685.0849 |
1804.00000 |
52 |
VALIDATED |
58690.1 |
58699 |
| 2602012701 |
243.488 |
65.719 |
98.26922 |
40.37577 |
58687.1187 |
58687.1495 |
1733.00000 |
52 |
VALIDATED |
58690.8 |
58701 |
| 2602012801 |
243.489 |
65.719 |
98.26892 |
40.37569 |
58689.0518 |
58689.1899 |
1826.00000 |
52 |
VALIDATED |
58695.8 |
58703 |
| 2602012901 |
243.488 |
65.719 |
98.26912 |
40.37575 |
58690.9854 |
58691.0159 |
2457.00000 |
52 |
VALIDATED |
58695.9 |
58705 |
| 2602013001 |
243.489 |
65.719 |
98.26835 |
40.37599 |
58693.2427 |
58693.3168 |
1554.00000 |
52 |
VALIDATED |
58697.7 |
58707 |
| 2602013101 |
243.488 |
65.719 |
98.26903 |
40.37583 |
58695.0475 |
58695.1275 |
2418.00000 |
52 |
VALIDATED |
58699.6 |
58709 |
| 2602013201 |
243.488 |
65.719 |
98.26887 |
40.37621 |
58697.1088 |
58697.1915 |
2591.00000 |
52 |
VALIDATED |
58701.6 |
58711 |
| 2602013301 |
243.488 |
65.719 |
98.26899 |
40.37608 |
58699.1132 |
58699.1325 |
1604.00000 |
52 |
VALIDATED |
58704.7 |
58713 |
| 2602013401 |
243.487 |
65.718 |
98.26775 |
40.37693 |
58701.1706 |
58701.2470 |
1996.00000 |
52 |
VALIDATED |
58705.6 |
58715 |
| 2602013501 |
243.487 |
65.718 |
98.26760 |
40.37717 |
58703.4908 |
58703.6322 |
3029.00000 |
52 |
VALIDATED |
58707.7 |
58717 |
| 2602013601 |
243.487 |
65.719 |
98.26951 |
40.37616 |
58705.2306 |
58705.2479 |
1394.00000 |
52 |
VALIDATED |
58709.6 |
58719 |
| 2602013701 |
243.487 |
65.719 |
98.26974 |
40.37640 |
58707.1002 |
58707.1163 |
1335.00000 |
52 |
VALIDATED |
58711.8 |
58721 |
| 2602013801 |
243.488 |
65.719 |
98.26927 |
40.37616 |
58709.0973 |
58709.1148 |
1408.00000 |
52 |
VALIDATED |
58715.6 |
58723 |
| 2602013901 |
243.488 |
65.719 |
98.26946 |
40.37609 |
58711.0948 |
58711.1134 |
1451.00000 |
52 |
VALIDATED |
58715.8 |
58725 |
| 2602014001 |
243.487 |
65.719 |
98.26957 |
40.37623 |
58713.2224 |
58713.2417 |
1537.00000 |
52 |
VALIDATED |
58716.6 |
58727 |
| 2602014101 |
243.487 |
65.719 |
98.26955 |
40.37615 |
58715.2218 |
58715.2411 |
1596.00000 |
52 |
VALIDATED |
58721.7 |
58729 |
| 2602014201 |
243.484 |
65.719 |
98.26942 |
40.37751 |
58717.4097 |
58717.4343 |
1760.00000 |
52 |
VALIDATED |
58721.8 |
58731 |
| 2602014301 |
243.488 |
65.720 |
98.26962 |
40.37585 |
58719.4195 |
58719.4384 |
1460.00000 |
52 |
VALIDATED |
58723.7 |
58733 |
| 2602014302 |
243.488 |
65.719 |
98.26954 |
40.37588 |
58721.4209 |
58721.5002 |
2260.00000 |
52 |
VALIDATED |
58729.9 |
58735 |
| 2602014401 |
243.487 |
65.720 |
98.26975 |
40.37603 |
58723.0264 |
58723.1008 |
667.00000 |
52 |
VALIDATED |
58730.0 |
58737 |
| 2602014501 |
243.487 |
65.720 |
98.26996 |
40.37595 |
58725.0144 |
58725.0912 |
861.00000 |
52 |
VALIDATED |
58732.8 |
58739 |
| 2602014601 |
243.489 |
65.720 |
98.27004 |
40.37510 |
58726.5121 |
58726.5882 |
0.00000 |
52 |
VALIDATED |
58732.9 |
58740 |
| 2602014901 |
243.488 |
65.720 |
98.27000 |
40.37571 |
58732.4205 |
58732.5606 |
1495.00000 |
52 |
VALIDATED |
58736.8 |
58746 |
| 2602015001 |
243.488 |
65.720 |
98.26979 |
40.37561 |
58733.5162 |
58733.5343 |
1190.00000 |
52 |
VALIDATED |
58737.8 |
58747 |
| 2602015101 |
243.489 |
65.720 |
98.26972 |
40.37545 |
58735.1322 |
58735.1505 |
1293.00000 |
52 |
VALIDATED |
58739.6 |
58749 |
| 2602015201 |
243.494 |
65.719 |
98.26758 |
40.37372 |
58737.1350 |
58737.1523 |
1266.00000 |
52 |
VALIDATED |
58741.6 |
58751 |
| 2602015301 |
243.492 |
65.719 |
98.26796 |
40.37463 |
58739.3898 |
58739.4074 |
762.00000 |
52 |
VALIDATED |
58742.7 |
58753 |
| 2602015401 |
243.489 |
65.719 |
98.26914 |
40.37538 |
58741.4587 |
58741.5348 |
697.00000 |
52 |
VALIDATED |
58746.7 |
58755 |
| 2602015501 |
243.493 |
65.721 |
98.27050 |
40.37316 |
58743.3769 |
58743.3968 |
1450.00000 |
52 |
VALIDATED |
58748.2 |
58757 |
| 2602015601 |
243.489 |
65.719 |
98.26921 |
40.37545 |
58745.4428 |
58745.4688 |
1849.00000 |
52 |
VALIDATED |
58751.6 |
58759 |
| 2602015701 |
243.490 |
65.720 |
98.26911 |
40.37485 |
58747.3125 |
58747.3310 |
1447.00000 |
52 |
VALIDATED |
58992.1 |
58761 |
| 2602015801 |
243.489 |
65.719 |
98.26906 |
40.37551 |
58749.3088 |
58749.3303 |
1707.00000 |
52 |
VALIDATED |
58753.7 |
58763 |
| 2602015901 |
243.489 |
65.719 |
98.26909 |
40.37563 |
58751.1331 |
58751.2731 |
1728.00000 |
52 |
VALIDATED |
58756.8 |
58765 |
| 2602016001 |
243.489 |
65.719 |
98.26895 |
40.37564 |
58753.0485 |
58753.0667 |
1321.00000 |
52 |
VALIDATED |
58760.7 |
58767 |
| 2602016101 |
243.488 |
65.719 |
98.26889 |
40.37593 |
58755.1796 |
58755.2048 |
2000.00000 |
52 |
VALIDATED |
58763.8 |
58769 |
| 2602016201 |
243.488 |
65.719 |
98.26923 |
40.37581 |
58757.7039 |
58757.7234 |
1441.00000 |
52 |
VALIDATED |
58764.0 |
58771 |
| 2602016301 |
243.491 |
65.719 |
98.26812 |
40.37484 |
58759.9488 |
58759.9708 |
1465.00000 |
52 |
VALIDATED |
58767.7 |
58773 |
| 2602016401 |
243.489 |
65.719 |
98.26903 |
40.37570 |
58761.9486 |
58761.9677 |
1121.00000 |
52 |
VALIDATED |
58765.9 |
58775 |
| 2602016501 |
243.489 |
65.717 |
98.26613 |
40.37670 |
58763.6873 |
58763.7082 |
1500.00000 |
52 |
VALIDATED |
58770.8 |
58777 |
| 2602016701 |
243.486 |
65.719 |
98.26916 |
40.37697 |
58767.5563 |
58767.5892 |
2415.00000 |
52 |
VALIDATED |
58778.7 |
58781 |
| 2602016801 |
243.486 |
65.718 |
98.26855 |
40.37719 |
58769.3727 |
58769.4489 |
1564.00000 |
52 |
VALIDATED |
58992.1 |
58783 |
| 2602016901 |
243.488 |
65.719 |
98.26888 |
40.37589 |
58775.8142 |
58775.8911 |
2016.00000 |
52 |
VALIDATED |
58779.7 |
58789 |
| 2602017001 |
243.487 |
65.719 |
98.26986 |
40.37635 |
58777.1132 |
58777.1323 |
1508.00000 |
52 |
VALIDATED |
58782.7 |
58791 |
| 2602017201 |
243.486 |
65.719 |
98.26967 |
40.37656 |
58779.0442 |
58779.0667 |
1758.00000 |
52 |
VALIDATED |
58783.6 |
58793 |
| 2602017401 |
243.488 |
65.719 |
98.26929 |
40.37601 |
58781.1016 |
58781.1188 |
1410.00000 |
52 |
VALIDATED |
58786.7 |
58795 |
| 2602017501 |
243.487 |
65.719 |
98.26945 |
40.37614 |
58783.3019 |
58783.3213 |
1596.00000 |
52 |
VALIDATED |
58787.7 |
58797 |
| 2602018001 |
243.487 |
65.719 |
98.26969 |
40.37605 |
58793.4751 |
58793.5514 |
1257.00000 |
52 |
VALIDATED |
58800.0 |
58807 |
| 2602018101 |
243.488 |
65.720 |
98.26978 |
40.37597 |
58795.0243 |
58795.0979 |
1493.00000 |
52 |
VALIDATED |
58801.0 |
58809 |
| 2602018201 |
243.488 |
65.720 |
98.26984 |
40.37581 |
58797.4074 |
58797.4875 |
1052.00000 |
52 |
VALIDATED |
58802.8 |
58811 |
| 2602018301 |
243.488 |
65.720 |
98.26970 |
40.37591 |
58799.2762 |
58799.2970 |
1166.00000 |
52 |
VALIDATED |
58803.8 |
58813 |
| 2602018401 |
243.489 |
65.720 |
98.26988 |
40.37543 |
58801.2736 |
58801.2995 |
1506.00000 |
52 |
VALIDATED |
58810.0 |
58815 |
| 2602018501 |
243.488 |
65.720 |
98.27002 |
40.37570 |
58803.5319 |
58803.5491 |
1412.00000 |
52 |
VALIDATED |
58810.8 |
58817 |
| 2602018601 |
243.487 |
65.721 |
98.27165 |
40.37552 |
58805.5917 |
58805.6111 |
1428.00000 |
52 |
VALIDATED |
58810.9 |
58819 |
| 2602018701 |
243.489 |
65.720 |
98.26998 |
40.37535 |
58807.3974 |
58807.4146 |
1405.00000 |
52 |
VALIDATED |
58813.2 |
58821 |
| 2602018801 |
243.489 |
65.719 |
98.26936 |
40.37549 |
58809.2673 |
58809.2935 |
1328.00000 |
52 |
VALIDATED |
58814.7 |
58823 |
| 2602018901 |
243.490 |
65.720 |
98.26909 |
40.37486 |
58811.0106 |
58811.0328 |
1038.00000 |
52 |
VALIDATED |
58816.9 |
58825 |
| 2602019001 |
243.489 |
65.719 |
98.26920 |
40.37532 |
58813.0028 |
58813.0308 |
1041.00000 |
52 |
VALIDATED |
58817.6 |
58827 |
| 2602019101 |
243.492 |
65.721 |
98.26990 |
40.37388 |
58815.0007 |
58815.0263 |
1788.00000 |
52 |
VALIDATED |
58821.9 |
58829 |
| 2602019201 |
243.494 |
65.720 |
98.26878 |
40.37333 |
58816.8056 |
58816.8334 |
2200.00000 |
52 |
VALIDATED |
58822.1 |
58830 |
| 2602019301 |
243.489 |
65.719 |
98.26930 |
40.37555 |
58818.9979 |
58819.0273 |
2063.00000 |
52 |
VALIDATED |
58824.7 |
58833 |
| 2602019401 |
243.494 |
65.720 |
98.26916 |
40.37337 |
58820.9322 |
58820.9620 |
2263.00000 |
52 |
VALIDATED |
58824.8 |
58834 |
| 2602019501 |
243.489 |
65.719 |
98.26896 |
40.37572 |
58823.1255 |
58823.1431 |
1411.00000 |
52 |
VALIDATED |
58827.6 |
58837 |
| 2602019601 |
243.489 |
65.719 |
98.26901 |
40.37543 |
58825.0600 |
58825.0771 |
1371.00000 |
52 |
VALIDATED |
58829.7 |
58839 |
| 2602019701 |
243.489 |
65.719 |
98.26913 |
40.37539 |
58827.0595 |
58827.0766 |
1410.00000 |
52 |
VALIDATED |
58831.6 |
58841 |
| 2602019801 |
243.489 |
65.719 |
98.26904 |
40.37574 |
58828.9983 |
58829.0228 |
1892.00000 |
52 |
VALIDATED |
58833.6 |
58843 |
| 2602019901 |
243.488 |
65.719 |
98.26917 |
40.37592 |
58831.0579 |
58831.0867 |
2434.00000 |
52 |
VALIDATED |
58835.8 |
58845 |