Observation information
- date-obs: 2026-09-03
- time-obs: 01:04:48.217000000
- date-end: 2026-09-03
- time-end: 03:37:58.197600000
- obs_id: T05_264T01_9000006602
- exposure: 1184.39166605
- 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_59155cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59155cztM0_level2_quad_clean.evt
|
| Size (bytes) | 843,428,160 | 94,849,920 |
| Size | 804.4 MB
| 90.5 MB
|
| Events in quadrant A | 3,604,880 | 732,148 |
| Events in quadrant B | 3,900,226 | 793,662 |
| Events in quadrant C | 4,629,118 | 717,623 |
| Events in quadrant D | 18,496,135 | 100,039 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16237 | 2 |
| B | 0 | 16887 | 2 |
| C | 0 | 18948 | 2 |
| D | 0 | 60171 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7600 | 110 | 1.447368% |
| B | 7600 | 233 | 3.065789% |
| C | 7600 | 242 | 3.184211% |
| D | 7601 | 6617 | 87.054335% |
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 | 9190 | 7602 | 10 | 10 | 0.11% | 0.13% |  |
| B | 9190 | 7603 | 64 | 64 | 0.70% | 0.84% |  |
| C | 9190 | 7603 | 123 | 123 | 1.34% | 1.62% |  |
| D | 9190 | 7600 | 6572 | 6572 | 71.51% | 86.47% |  |
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 | 10 | 251 | 149219 | 693.15 | 872 | 850 | 214.1 |
| A | 3 | 245 | 31591 | 143.62 | 872 | 850 | 214.1 |
| A | 4 | 3 | 17408 | 77.36 | 872 | 850 | 214.1 |
| B | 4 | 236 | 222525 | 1186.56 | 863 | 829 | 186.8 |
| B | 5 | 185 | 209237 | 1115.44 | 863 | 829 | 186.8 |
| B | 12 | 111 | 23019 | 118.77 | 863 | 829 | 186.8 |
| C | 5 | 250 | 966777 | 4108.39 | 849 | 840 | 235.1 |
| C | 14 | 254 | 94784 | 399.57 | 849 | 840 | 235.1 |
| C | 12 | 252 | 93397 | 393.67 | 849 | 840 | 235.1 |
| D | 12 | 1 | 10921373 | 101115.92 | 370 | 353 | 108.0 |
| D | 12 | 110 | 4657375 | 43118.6 | 370 | 353 | 108.0 |
| D | 6 | 239 | 724853 | 6708.03 | 370 | 353 | 108.0 |
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 |  |  |