NICER observation list: Target ID 258401

Abstract

We propose to observe the next outburst of SAX J1808.4-3658 with NICER for a total exposure of 150 ks. Such an observation campaign will allow us to: 1) extend the pulsar timing baseline for this source to over 2 decades, giving the most precise measure yet of the long term spin and binary orbit evolution in an AMXP; 2) establish, for the first time, the systematic evolution of spectral and temporal variability in the soft emission over the course of an AMXP outburst; 3) achieve a high probability of observing type-I X-ray bursts and their potential interaction with the neutron star environment.
Obsid RA DEC l b Start End Exposure Number of
Modules		 Number of
Processing		 Status of
Processing		 Date of
Processing		 Public
date
2584010101 272.116 -36.978 355.387 -8.149 58703.7191 58703.9880 1695.0 52 3 VALIDATED 58707.7 58717
2584010102 272.115 -36.979 355.385 -8.148 58704.1068 58704.9553 1926.0 52 3 VALIDATED 58708.6 58718
2584010103 272.115 -36.979 355.385 -8.148 58705.0103 58705.9701 5485.0 52 3 VALIDATED 58709.6 58719
2584010104 272.114 -36.979 355.385 -8.148 58706.0266 58706.9542 3992.0 52 3 VALIDATED 58710.6 58720
2584010105 272.116 -36.978 355.386 -8.149 58706.9887 58707.9671 10628.0 52 3 VALIDATED 58711.8 58721
2584010106 272.116 -36.978 355.386 -8.149 58708.0199 58708.9984 12400.0 52 3 VALIDATED 58715.6 58722
2584010107 272.116 -36.979 355.386 -8.149 58709.1148 58709.9653 11582.3 52 2 VALIDATED 58715.6 58723
2584010108 272.115 -36.979 355.385 -8.149 58710.0183 58710.9970 11194.5 52 1 VALIDATED 58715.7 58724
2584010109 272.115 -36.979 355.385 -8.149 58711.0497 58711.9644 11630.0 52 1 VALIDATED 58715.8 58725
2584010110 272.115 -36.979 355.385 -8.149 58712.0171 58712.9965 13796.0 52 1 VALIDATED 58715.8 58726
2584010111 272.115 -36.979 355.385 -8.149 58729.8845 58729.9695 620.0 52 1 VALIDATED 58736.0 58743
2584010112 272.117 -36.981 355.384 -8.151 58730.0778 58730.5348 1271.0 52 1 VALIDATED 58736.1 58744
2584010201 272.115 -36.979 355.385 -8.148 58713.0007 58713.9641 13281.0 52 2 VALIDATED 58716.5 58727
2584010301 272.115 -36.979 355.385 -8.148 58714.0164 58714.9963 17552.0 52 3 VALIDATED 58992.0 58728
2584010401 272.115 -36.979 355.385 -8.148 58715.0041 58715.9815 16916.0 52 4 VALIDATED 58721.6 58729
2584010501 272.115 -36.979 355.385 -8.148 58716.0212 58716.9491 17618.0 52 3 VALIDATED 58721.7 58730
2584010502 272.115 -36.979 355.385 -8.149 58716.9898 58717.0134 1029.0 52 2 VALIDATED 58721.8 58731
2584010601 272.115 -36.979 355.385 -8.148 58717.0542 58717.9599 17169.0 52 2 VALIDATED 58721.8 58731
2584010701 272.115 -36.978 355.386 -8.148 58718.0152 58718.9493 10351.0 52 2 VALIDATED 58722.6 58732
2584010801 272.115 -36.979 355.385 -8.149 58718.9997 58719.9713 8753.0 52 3 VALIDATED 58723.6 58733
2584010901 272.115 -36.979 355.385 -8.148 58720.0311 58720.9488 5465.0 52 3 VALIDATED 58724.6 58734
2584011001 272.115 -36.979 355.385 -8.148 58721.0623 58721.9810 5850.0 52 3 VALIDATED 58729.9 58735
2584011101 272.115 -36.979 355.385 -8.149 58722.0303 58722.9421 14500.0 52 2 VALIDATED 58729.9 58736
2584011102 272.115 -36.979 355.385 -8.149 58722.9823 58723.0046 1265.0 52 1 VALIDATED 58730.0 58737
2584011201 272.115 -36.979 355.385 -8.148 58723.0459 58723.3808 3494.0 52 1 VALIDATED 58730.0 58737
2584011301 272.115 -36.979 355.385 -8.148 58724.2153 58724.4780 2298.0 52 1 VALIDATED 58730.1 58738
2584011401 272.115 -36.980 355.384 -8.149 58725.0461 58725.5794 3952.0 52 2 VALIDATED 58732.8 58739
2584011501 272.115 -36.979 355.385 -8.149 58726.2718 58726.6208 1542.0 52 2 VALIDATED 58732.9 58740
2584011502 272.117 -36.982 355.383 -8.151 58726.9806 58727.0012 840.0 52 2 VALIDATED 58735.8 58741
2584011601 272.118 -36.982 355.384 -8.152 58727.3030 58727.9611 1109.0 52 2 VALIDATED 58735.9 58741
2584011701 272.115 -36.979 355.385 -8.148 58728.0776 58728.6887 4309.0 52 2 VALIDATED 58735.9 58742
2584011702 272.115 -36.979 355.385 -8.148 58728.9803 58729.0111 1286.0 52 1 VALIDATED 58736.0 58743
2584011801 272.118 -36.982 355.384 -8.152 58729.2387 58729.4468 436.0 52 1 VALIDATED 58736.0 58743
2584011901 272.118 -36.982 355.384 -8.152 58730.5986 58730.8724 2169.0 52 1 VALIDATED 58736.1 58744
2584011902 272.115 -36.979 355.385 -8.149 58730.9953 58731.0014 0.0 52 2 VALIDATED 58736.6 58745
2584012001 272.115 -36.979 355.385 -8.149 58731.0479 58731.8421 5253.0 52 2 VALIDATED 58736.7 58745
2584012101 272.117 -36.980 355.385 -8.150 58732.0281 58732.9919 4436.0 52 2 VALIDATED 58736.7 58746
2584012102 272.115 -36.979 355.385 -8.148 58732.9950 58733.0051 179.0 52 2 VALIDATED 58737.7 58747
2584012201 272.115 -36.979 355.385 -8.149 58733.0448 58733.8944 2898.0 52 2 VALIDATED 58737.7 58747
2584012301 272.115 -36.979 355.385 -8.149 58734.0918 58734.9907 2579.0 52 3 VALIDATED 58738.6 58748
2584012401 272.115 -36.979 355.385 -8.149 58735.0586 58735.4491 764.0 52 3 VALIDATED 58739.6 58749
2584012501 272.114 -36.978 355.385 -8.147 58740.9111 58740.9810 606.0 52 3 VALIDATED 58745.7 58754
2584012601 272.114 -36.978 355.386 -8.147 58741.1043 58741.9525 1104.0 52 3 VALIDATED 58746.7 58755
2584012701 272.114 -36.978 355.385 -8.147 58742.0097 58742.9875 3289.0 52 3 VALIDATED 58746.8 58756
2584012801 272.115 -36.978 355.386 -8.148 58743.0417 58743.7000 4467.0 52 2 VALIDATED 58748.2 58757
2584012901 272.114 -36.978 355.385 -8.148 58744.1358 58744.9882 2675.0 52 3 VALIDATED 58749.6 58758
2584013001 272.114 -36.978 355.385 -8.147 58745.2970 58745.9618 3814.0 52 3 VALIDATED 58750.7 58759
2584013101 272.112 -36.977 355.386 -8.145 58746.2004 58746.9818 1704.0 52 2 VALIDATED 58750.7 58760
2584013201 272.115 -36.979 355.385 -8.148 58747.0386 58747.2440 2722.0 52 2 VALIDATED 58992.0 58761
2584013301 272.114 -36.978 355.386 -8.147 58748.5220 58748.9933 7124.0 52 3 VALIDATED 58752.9 58762
2584013401 272.113 -36.977 355.386 -8.146 58749.0385 58749.9454 7811.0 52 3 VALIDATED 58753.6 58763
2584013501 272.113 -36.977 355.386 -8.146 58750.2643 58750.9177 1811.0 52 3 VALIDATED 58754.6 58764
2584013601 272.113 -36.977 355.386 -8.146 58751.1027 58751.3052 1531.0 52 3 VALIDATED 58756.8 58765
2584013701 272.115 -36.978 355.386 -8.148 58752.0125 58752.9891 4544.0 52 2 VALIDATED 58756.8 58766
2584013801 272.113 -36.976 355.387 -8.145 58753.1029 58753.8857 5347.0 52 4 VALIDATED 58760.7 58767
2584013901 272.114 -36.977 355.386 -8.147 58754.1999 58754.7892 696.0 52 5 VALIDATED 58763.7 58768
2584014001 272.117 -36.982 355.383 -8.151 58765.1942 58765.4012 2396.0 52 1 VALIDATED 58770.9 58779
2584014002 272.117 -36.977 355.387 -8.149 58778.5404 58778.8736 0.0 52 2 VALIDATED 58782.7 58792
2584014101 272.118 -36.982 355.384 -8.152 58766.0323 58766.1757 2456.0 52 1 VALIDATED 58771.0 58780
2584014102 272.116 -36.978 355.386 -8.149 58779.3777 58779.7778 0.0 52 2 VALIDATED 58783.6 58793
2584014201 272.118 -36.980 355.385 -8.151 58768.0958 58768.9400 6040.0 52 3 VALIDATED 58778.8 58782
2584014202 272.116 -36.979 355.386 -8.149 58780.4099 58780.6803 0.0 52 3 VALIDATED 58784.7 58794
2584014301 272.119 -36.981 355.385 -8.152 58768.9991 58769.4637 3071.0 52 3 VALIDATED 58992.1 58783
2584014302 272.115 -36.979 355.385 -8.149 58781.3129 58781.9056 0.0 52 3 VALIDATED 58786.7 58795
2584014401 272.116 -36.979 355.385 -8.149 58782.0224 58782.4215 0.0 52 2 VALIDATED 58786.8 58796
2584014501 272.115 -36.979 355.385 -8.148 58784.5372 58784.8079 0.0 50 3 VALIDATED 58789.8 58798
2584014601 272.115 -36.979 355.385 -8.148 58786.2790 58786.4854 0.0 50 2 VALIDATED 58790.9 58800
2584014701 272.115 -36.979 355.385 -8.148 58788.8102 58788.9542 263.0 50 3 VALIDATED 58793.7 58802
2584014801 272.115 -36.979 355.385 -8.148 58789.0058 58789.0188 0.0 50 3 VALIDATED 58795.1 58803
2584014901 272.115 -36.979 355.385 -8.148 58790.3417 58790.4377 874.0 50 2 VALIDATED 58795.3 58804
2584014902 272.115 -36.979 355.385 -8.148 58792.5350 58792.6310 849.0 50 3 VALIDATED 58797.0 58806
2584015001 272.115 -36.979 355.385 -8.148 58793.5025 58793.5343 434.0 49 4 VALIDATED 58800.0 58807
2584015101 272.115 -36.979 355.385 -8.149 58795.1800 58795.2032 0.0 49 3 VALIDATED 58801.1 58809