Table 1
Log of analysed NICER observations of MAXI J1820+070.
| Obs ID | Exp | NFPM | Phase | Date | Obs ID | Exp | NFPM | Phase | Date | Obs ID | Exp | NFPM | Phase | Date |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| [s] | [s] | [s] | ||||||||||||
| 1200120101 | 6274 | 50 | Rise | 2018-03-12 | 1200120132 | 3773 | 50 | Plateau | 2018-04-20 | 1200120165 | 1303 | 50 | Bright decline | 2018-05-31 |
| 1200120133 | 4727 | 50 | Plateau | 2018-04-21 | 1200120166 | 1349 | 50 | Bright decline | 2018-06-01 | |||||
| 1200120102 | 4513 | 50 | Rise | 2018-03-13 | 1200120134 | 6345 | 50 | Plateau | 2018-04-21 | 1200120167 | 1529 | 50 | Bright decline | 2018-06-02 |
| 1200120103 | 9474 | 50 | Rise | 2018-03-13 | 1200120135 | 4077 | 50 | Plateau | 2018-04-23 | 1200120168 | 417 | 50 | Bright decline | 2018-06-03 |
| 1200120136 | 1570 | 50 | Plateau | 2018-04-24 | ||||||||||
| 1200120104 | 6231 | 50 | Rise | 2018-03-15 | 1200120137 | 6870 | 50 | Plateau | 2018-04-25 | 1200120169 | 1761 | 50 | Bright decline | 2018-06-04 |
| 1200120105 | 3060 | 50 | Rise | 2018-03-16 | 1200120138 | 3131 | 50 | Plateau | 2018-04-25 | 1200120170 | 3592 | 50 | Bright decline | 2018-06-05 |
| 1200120139 | 560 | 50 | Plateau | 2018-04-27 | ||||||||||
| 1200120106 | 4446 | 50 | Rise | 2018-03-21 | 1200120171 | 2373 | 50 | Bright decline | 2018-06-06 | |||||
| 1200120107(a) | 9293 | 50 | Rise | 2018-03-22 | 1200120140 | 1844 | 50 | Plateau | 2018-04-29 | |||||
| 1200120141 | 904 | 50 | Plateau | 2018-05-01 | 1200120172 | 2249 | 50 | Bright decline | 2018-06-07 | |||||
| 1200120107(b) | 3703 | 42 | Rise | 2018-03-22 | ||||||||||
| 1200120108 | 5296 | 42 | Rise | 2018-03-22 | 1200120142 | 3195 | 50 | Plateau | 2018-05-02 | 1200120173 | 3284 | 50 | Bright decline | 2018-06-08 |
| 1200120174 | 2698 | 50 | Bright decline | 2018-06-09 | ||||||||||
| 1200120109 | 11472 | 50 | Rise | 2018-03-24 | 1200120143 | 2075 | 50 | Plateau | 2018-05-03 | |||||
| 1200120144 | 2992 | 50 | Plateau | 2018-05-04 | 1200120175 | 2156 | 50 | Bright decline | 2018-06-10 | |||||
| 1200120110 | 19360 | 50 | Plateau | 2018-03-24 | 1200120176 | 5311 | 50 | Bright decline | 2018-06-11 | |||||
| 1200120145 | 4863 | 50 | Plateau | 2018-05-05 | ||||||||||
| 1200120111 | 14893 | 50 | Plateau | 2018-03-26 | 1200120146 | 4756 | 50 | Plateau | 2018-05-06 | 1200120177 | 435 | 50 | Bright decline | 2018-06-12 |
| 1200120178 | 2625 | 50 | Bright decline | 2018-06-13 | ||||||||||
| 1200120112 | 12033 | 50 | Plateau | 2018-03-26 | 1200120147 | 4609 | 50 | Plateau | 2018-05-07 | 1200120179 | 1237 | 50 | Bright decline | 2018-06-14 |
| 1200120113 | 1980 | 50 | Plateau | 2018-03-28 | 1200120180 | 2246 | 50 | Bright decline | 2018-06-15 | |||||
| 1200120114 | 2701 | 50 | Plateau | 2018-03-29 | 1200120148 | 2650 | 50 | Plateau | 2018-05-08 | |||||
| 1200120115 | 3137 | 50 | Plateau | 2018-03-30 | 1200120182 | 1120 | 50 | Bright decline | 2018-06-17 | |||||
| 1200120149 | 2650 | 50 | Plateau | 2018-05-09 | 1200120183 | 438 | 50 | Bright decline | 2018-06-18 | |||||
| 1200120116 | 9209 | 50 | Plateau | 2018-03-31 | 1200120150 | 1652 | 50 | Plateau | 2018-05-10 | 1200120184 | 448 | 50 | Bright decline | 2018-06-19 |
| 1200120117 | 2752 | 50 | Plateau | 2018-04-01 | 1200120151 | 1037 | 50 | Plateau | 2018-05-11 | 1200120185 | 578 | 50 | Bright decline | 2018-06-20 |
| 1200120118 | 8105 | 50 | Plateau | 2018-04-02 | 1200120152 | 2102 | 50 | Plateau | 2018-05-12 | 1200120186 | 916 | 50 | Hard-soft Transition | 2018-06-23 |
| 1200120119 | 2935 | 50 | Plateau | 2018-04-03 | 1200120153 | 356 | 50 | Plateau | 2018-05-13 | 1200120187 | 1395 | 50 | Hard-soft Transition | 2018-06-24 |
| 1200120120 | 6049 | 50 | Plateau | 2018-04-04 | 1200120155 | 326 | 50 | Bright decline | 2018-05-21 | 1200120188 | 1244 | 50 | Hard-soft Transition | 2018-06-27 |
| 1200120121 | 2955 | 50 | Plateau | 2018-04-05 | 1200120156 | 2886 | 50 | Bright decline | 2018-05-22 | |||||
| 1200120122 | 3247 | 50 | Plateau | 2018-04-06 | 1200120189 | 11441 | 50 | Hard-soft Transition | 2018-06-28 | |||||
| 1200120123 | 752 | 50 | Plateau | 2018-04-07 | 1200120157 | 3584 | 50 | Bright decline | 2018-05-23 | |||||
| 1200120190 | 2150 | 50 | Hard-soft Transition | 2018-06-29 | ||||||||||
| 1200120124 | 177 | 50 | Plateau | 2018-04-09 | 1200120158 | 1730 | 50 | Bright decline | 2018-05-24 | |||||
| 1200120125 | 307 | 50 | Plateau | 2018-04-10 | 1200120159 | 1960 | 50 | Bright decline | 2018-05-25 | 1200120194 | 4738 | 50 | Hard-soft Transition | 2018-07-03 |
| 1200120126 | 896 | 50 | Plateau | 2018-04-11 | 1200120160 | 1688 | 50 | Bright decline | 2018-05-26 | |||||
| 1200120127 | 354 | 50 | Plateau | 2018-04-12 | 1200120161 | 2540 | 50 | Bright decline | 2018-05-27 | 1200120195 | 691 | 50 | Hard-soft Transition | 2018-07-04 |
| 1200120162 | 574 | 50 | Bright decline | 2018-05-28 | ||||||||||
| 1200120130 | 7493 | 50 | Plateau | 2018-04-16 | 1200120196 | 541 | 50 | Hard-soft Transition | 2018-07-05 | |||||
| 1200120131 | 6571 | 50 | Plateau | 2018-04-17 | 1200120163 | 1040 | 50 | Bright decline | 2018-05-29 | |||||
| 1200120164 | 375 | 50 | Bright decline | 2018-05-30 | 1200120197(c) | 12429 | 27 | Hard-soft Transition | 2018-07-06 |
Notes. The table reports: NICER observations IDs; net on-source exposure time after screening and filtering of < 10 s GTIs; number of FPMs used for the analysis (NFPM); position of the source in the HID as sketched in Fig. 1; date of the observation (yyyy:mm:dd). The adopted grouping highlights observations combined for the X-ray spectral-timing analysis. (a,b)First and second part of observation 1200120107, characterised by a change in the number of active FPMs; (c)first part of observation 1200120197, including the time before and during the transition.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.