Observation information
- date-obs: 2026-09-02
- time-obs: 00:57:02.401100000
- date-end: 2026-09-02
- time-end: 03:21:44.380100000
- obs_id: T05_264T01_9000006602
- exposure: 1437.73105514
- 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_59140cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59140cztM0_level2_quad_clean.evt
|
| Size (bytes) | 750,032,640 | 85,055,040 |
| Size | 715.3 MB
| 81.1 MB
|
| Events in quadrant A | 3,522,176 | 641,970 |
| Events in quadrant B | 4,045,212 | 691,941 |
| Events in quadrant C | 3,290,582 | 642,549 |
| Events in quadrant D | 16,377,541 | 124,995 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15310 | 2 |
| B | 0 | 16598 | 2 |
| C | 0 | 14630 | 2 |
| D | 0 | 53221 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6799 | 124 | 1.823798% |
| B | 6799 | 277 | 4.074129% |
| C | 6799 | 51 | 0.750110% |
| D | 6799 | 5501 | 80.908957% |
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 | 7706 | 6861 | 95 | 95 | 1.23% | 1.38% |  |
| B | 7706 | 6861 | 140 | 140 | 1.82% | 2.04% |  |
| C | 7706 | 6861 | 30 | 30 | 0.39% | 0.44% |  |
| D | 7705 | 6824 | 5424 | 5424 | 70.40% | 79.48% |  |
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 | 361249 | 1957.58 | 751 | 734 | 184.2 |
| A | 3 | 14 | 114291 | 616.61 | 751 | 734 | 184.2 |
| A | 10 | 251 | 86166 | 463.89 | 751 | 734 | 184.2 |
| B | 5 | 236 | 456058 | 2840.91 | 744 | 718 | 160.3 |
| B | 4 | 236 | 414689 | 2582.81 | 744 | 718 | 160.3 |
| B | 5 | 185 | 108130 | 670.15 | 744 | 718 | 160.3 |
| C | 12 | 252 | 118602 | 573.34 | 740 | 732 | 205.6 |
| C | 14 | 254 | 94598 | 456.58 | 740 | 732 | 205.6 |
| C | 7 | 255 | 49095 | 235.25 | 740 | 732 | 205.6 |
| D | 12 | 1 | 14567690 | 165390.8 | 299 | 285 | 88.1 |
| D | 12 | 110 | 325834 | 3696.12 | 299 | 285 | 88.1 |
| D | 8 | 129 | 83969 | 950.1 | 299 | 285 | 88.1 |
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 |  |  |