Observation information
- date-obs: 2026-09-02
- time-obs: 13:13:42.309300000
- date-end: 2026-09-02
- time-end: 15:33:44.290900000
- obs_id: T05_264T01_9000006602
- exposure: 2887.54735118
- sourceid: 4U 1907+09
- observer: rsharmaphys
- ra_pnt: 287.4085
- dec_pnt: 9.829809
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T05_264T01_9000006602_59147cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59147cztM0_level2_quad_clean.evt
|
| Size (bytes) | 698,866,560 | 93,021,120 |
| Size | 666.5 MB
| 88.7 MB
|
| Events in quadrant A | 3,974,396 | 665,497 |
| Events in quadrant B | 3,422,211 | 737,432 |
| Events in quadrant C | 3,740,344 | 660,340 |
| Events in quadrant D | 14,190,292 | 266,189 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16737 | 2 |
| B | 0 | 14932 | 2 |
| C | 0 | 16012 | 2 |
| D | 0 | 47005 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6983 | 250 | 3.580123% |
| B | 6983 | 127 | 1.818703% |
| C | 6983 | 174 | 2.491766% |
| D | 6982 | 4341 | 62.174162% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7803 | 6983 | 131 | 131 | 1.68% | 1.88% |  |
| B | 7803 | 6983 | 20 | 20 | 0.26% | 0.29% |  |
| C | 7803 | 6983 | 87 | 87 | 1.11% | 1.25% |  |
| D | 7801 | 6981 | 4080 | 4080 | 52.30% | 58.44% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 15 | 233 | 584472 | 3004.97 | 790 | 768 | 194.2 |
| A | 10 | 251 | 246037 | 1262.67 | 790 | 768 | 194.2 |
| A | 3 | 245 | 21608 | 107.29 | 790 | 768 | 194.2 |
| B | 4 | 201 | 107038 | 620.77 | 788 | 756 | 171.2 |
| B | 5 | 236 | 60619 | 349.65 | 788 | 756 | 171.2 |
| B | 5 | 185 | 57088 | 329.02 | 788 | 756 | 171.2 |
| C | 5 | 250 | 251243 | 1178.72 | 775 | 768 | 212.5 |
| C | 13 | 3 | 136428 | 638.41 | 775 | 768 | 212.5 |
| C | 6 | 223 | 112244 | 524.6 | 775 | 768 | 212.5 |
| D | 12 | 1 | 8301031 | 55760.97 | 518 | 496 | 148.9 |
| D | 12 | 110 | 2928885 | 19672.2 | 518 | 496 | 148.9 |
| D | 8 | 129 | 359461 | 2411.44 | 518 | 496 | 148.9 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |
TCT plots
| Parameter |
TCT0 |
TCT_healed |
| Tct |  |  |