Observation information
- date-obs: 2026-09-02
- time-obs: 08:05:27.347500000
- date-end: 2026-09-02
- time-end: 13:49:50.304600000
- obs_id: T05_264T01_9000006602
- exposure: 4167.14540064
- 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_59146cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59146cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,039,961,600 | 241,479,360 |
| Size | 1.9 GB
| 230.3 MB
|
| Events in quadrant A | 9,610,700 | 1,806,982 |
| Events in quadrant B | 9,896,893 | 1,990,794 |
| Events in quadrant C | 9,948,688 | 1,798,939 |
| Events in quadrant D | 44,542,530 | 368,026 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 396 | 0 |
| B | 0 | 396 | 0 |
| C | 0 | 396 | 0 |
| D | 0 | 396 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 42340 | 3 |
| B | 0 | 42536 | 3 |
| C | 0 | 43333 | 3 |
| D | 0 | 145703 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19544 | 529 | 2.706713% |
| B | 19544 | 582 | 2.977896% |
| C | 19544 | 525 | 2.686246% |
| D | 19544 | 15711 | 80.387843% |
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 | 20664 | 19546 | 82 | 82 | 0.40% | 0.42% |  |
| B | 20664 | 19545 | 45 | 45 | 0.22% | 0.23% |  |
| C | 20664 | 19547 | 171 | 171 | 0.83% | 0.87% |  |
| D | 20663 | 19543 | 14760 | 14760 | 71.43% | 75.53% |  |
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 | 443184 | 827.23 | 2207 | 2146 | 533.1 |
| A | 15 | 233 | 226013 | 419.9 | 2207 | 2146 | 533.1 |
| A | 7 | 243 | 221057 | 410.6 | 2207 | 2146 | 533.1 |
| B | 5 | 236 | 332196 | 706.02 | 2194 | 2108 | 467.5 |
| B | 4 | 236 | 292236 | 620.55 | 2194 | 2108 | 467.5 |
| B | 5 | 185 | 235266 | 498.7 | 2194 | 2108 | 467.5 |
| C | 12 | 252 | 394876 | 669.37 | 2164 | 2143 | 586.7 |
| C | 5 | 250 | 314533 | 532.43 | 2164 | 2143 | 586.7 |
| C | 14 | 254 | 264283 | 446.79 | 2164 | 2143 | 586.7 |
| D | 12 | 1 | 32952263 | 133387.43 | 855 | 815 | 247.0 |
| D | 12 | 110 | 6504983 | 26328.87 | 855 | 815 | 247.0 |
| D | 1 | 27 | 535433 | 2164.13 | 855 | 815 | 247.0 |
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 |  |  |