Observation information
- date-obs: 2026-09-02
- time-obs: 04:33:46.373400000
- date-end: 2026-09-02
- time-end: 06:54:57.356300000
- obs_id: T05_264T01_9000006602
- exposure: 638.936218202
- 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_59142cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59142cztM0_level2_quad_clean.evt
|
| Size (bytes) | 906,010,560 | 98,164,800 |
| Size | 864.0 MB
| 93.6 MB
|
| Events in quadrant A | 3,944,456 | 756,649 |
| Events in quadrant B | 4,338,234 | 828,411 |
| Events in quadrant C | 4,029,798 | 761,118 |
| Events in quadrant D | 20,581,589 | 51,534 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 166 | 0 |
| B | 0 | 166 | 0 |
| C | 0 | 166 | 0 |
| D | 0 | 166 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17879 | 1 |
| B | 0 | 18571 | 1 |
| C | 0 | 17949 | 1 |
| D | 0 | 66768 | 4 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8272 | 183 | 2.212282% |
| B | 8272 | 287 | 3.469536% |
| C | 8272 | 137 | 1.656190% |
| D | 8271 | 7780 | 94.063596% |
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 | 8534 | 8336 | 20 | 20 | 0.23% | 0.24% |  |
| B | 8534 | 8335 | 38 | 38 | 0.45% | 0.46% |  |
| C | 8534 | 8335 | 23 | 23 | 0.27% | 0.28% |  |
| D | 8533 | 8328 | 7291 | 7291 | 85.44% | 87.55% |  |
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 | 3 | 14 | 115159 | 496.28 | 942 | 915 | 230.2 |
| A | 10 | 251 | 98424 | 423.58 | 942 | 915 | 230.2 |
| A | 15 | 233 | 37756 | 160.04 | 942 | 915 | 230.2 |
| B | 4 | 236 | 187027 | 912.38 | 938 | 899 | 204.0 |
| B | 5 | 236 | 176820 | 862.34 | 938 | 899 | 204.0 |
| B | 5 | 185 | 108033 | 525.16 | 938 | 899 | 204.0 |
| C | 12 | 252 | 202467 | 796.53 | 929 | 922 | 253.0 |
| C | 14 | 254 | 87696 | 342.94 | 929 | 922 | 253.0 |
| C | 6 | 223 | 36801 | 141.8 | 929 | 922 | 253.0 |
| D | 12 | 1 | 17477738 | 229912.76 | 264 | 252 | 76.0 |
| D | 12 | 110 | 1892942 | 24897.95 | 264 | 252 | 76.0 |
| D | 6 | 239 | 61334 | 803.52 | 264 | 252 | 76.0 |
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 |  |  |