NICER observation list: Target ID 251601

Abstract

We are proposing continued timing of pulsars PSR J1846-0258 and J1838-0655 for a total of 110 ks to maintain phase-connected timing solutions. These pulsars are members of a group of young and energetic rotation-powered pulsars that are both radio and GeV quiet, and therefore must be monitored in X-rays to understand their high-energy spectrum and enigmatic nature. Both have shown large glitches and J1846-0258 had a magnetar-like outburst in 2006. Timing with NICER will to establish a multi-year ephemeris and allow us to improve the significance of our detections of emission with Fermi GBM and LAT, to discriminate between pair creation models in pulsar magnetospheres, to understand weak particle acceleration and glitches in MeV pulsars and to probe the pulsar-magnetar connection.
Obsid RA DEC l b Start End Exposure Number of
Modules		 Number of
Processing		 Status of
Processing		 Date of
Processing		 Public
date
2516010101 281.605 -2.975 29.713 -0.241 58552.1653 58552.3252 6122.0 52 3 VALIDATED 58558.7 58566
2516010201 281.604 -2.976 29.711 -0.241 58553.1305 58553.2912 6203.0 52 2 VALIDATED 58558.7 58567
2516010301 281.603 -2.976 29.711 -0.240 58555.1279 58555.4639 4500.0 52 2 VALIDATED 58560.8 58569
2516010401 281.605 -2.975 29.713 -0.240 58559.3316 58559.6495 3423.0 52 3 VALIDATED 58566.1 58573
2516010501 281.604 -2.976 29.711 -0.241 58579.9949 58580.3310 3092.0 52 2 VALIDATED 58585.9 58594
2516010601 281.604 -2.974 29.713 -0.239 58609.6900 58609.9597 3406.0 52 3 VALIDATED 58612.6 58623
2516010602 281.604 -2.974 29.712 -0.240 58610.0132 58610.0241 650.0 52 3 VALIDATED 58613.6 58624
2516010701 281.604 -2.975 29.712 -0.240 58640.1859 58640.3326 2957.0 52 3 VALIDATED 58644.6 58654
2516010801 281.604 -2.976 29.712 -0.241 58670.9503 58670.9634 1109.0 52 3 VALIDATED 58674.8 58684
2516010802 281.604 -2.975 29.712 -0.240 58671.0127 58671.2859 5513.0 52 3 VALIDATED 58675.6 58685
2516010901 281.607 -2.974 29.714 -0.243 58698.2183 58698.4315 5491.0 52 3 VALIDATED 58702.7 58712
2516010902 281.606 -2.977 29.711 -0.243 58729.6311 58729.7837 4886.0 52 1 VALIDATED 58736.0 58743
2516011101 281.604 -2.975 29.712 -0.240 58749.8256 58749.9576 1192.0 52 3 VALIDATED 58753.7 58763
2516011102 281.604 -2.975 29.712 -0.240 58750.0146 58750.9903 2848.0 52 3 VALIDATED 58754.6 58764
2516011201 281.604 -2.975 29.712 -0.240 58751.0469 58751.3998 3100.0 52 3 VALIDATED 58756.7 58765
2516011301 281.604 -2.975 29.712 -0.240 58754.2097 58754.4979 2586.0 52 5 VALIDATED 58763.7 58768
2516011401 281.604 -2.975 29.712 -0.240 58757.1406 58757.6609 3848.0 52 2 VALIDATED 58764.0 58771
2516011402 281.604 -2.974 29.712 -0.240 58759.4544 58759.7252 5288.0 52 3 VALIDATED 58767.7 58773
2516011403 281.604 -2.975 29.712 -0.240 58760.0996 58760.1123 774.0 52 3 VALIDATED 58767.8 58774
2516011404 281.604 -2.975 29.712 -0.240 58763.7082 58763.9840 6258.0 52 3 VALIDATED 58770.8 58777
2516011405 281.604 -2.975 29.712 -0.240 58765.7099 58765.9201 5280.0 52 1 VALIDATED 58771.0 58779
2516011406 281.603 -2.974 29.712 -0.239 58892.6453 58892.9907 0.0 49 1 VALIDATED 58900.1 58906
2516011407 281.603 -2.974 29.712 -0.239 58893.0488 58893.4426 0.0 49 2 VALIDATED 58900.7 58907
2516011408 281.603 -2.975 29.712 -0.240 58894.2650 58894.5977 0.0 49 2 VALIDATED 58900.9 58908
2516011501 281.605 -2.974 29.713 -0.241 58769.0095 58769.3419 4109.0 52 3 VALIDATED 58992.1 58783
2516011502 281.604 -2.975 29.712 -0.240 58906.8590 58906.9407 0.0 50 2 VALIDATED 58912.1 58920
2516011503 281.604 -2.974 29.713 -0.240 58906.9869 58907.2637 0.0 50 1 VALIDATED 58912.1 58921
2516011601 281.603 -2.976 29.711 -0.240 58788.0197 58788.1750 2421.0 52 3 VALIDATED 58793.6 58802
2516011701 281.604 -2.975 29.712 -0.241 58800.6049 58800.7459 137.0 50 2 VALIDATED 58805.8 58814