Observation information
- date-obs: 2026-09-01
- time-obs: 16:36:29.465200000
- date-end: 2026-09-01
- time-end: 18:42:29.442500000
- obs_id: T05_264T01_9000006602
- exposure: 1820.44787693
- 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_59135cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59135cztM0_level2_quad_clean.evt
|
| Size (bytes) | 707,117,760 | 85,754,880 |
| Size | 674.4 MB
| 81.8 MB
|
| Events in quadrant A | 4,019,261 | 629,904 |
| Events in quadrant B | 3,337,064 | 702,792 |
| Events in quadrant C | 3,188,919 | 642,433 |
| Events in quadrant D | 15,124,501 | 167,141 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16684 | 2 |
| B | 0 | 14390 | 2 |
| C | 0 | 14104 | 2 |
| D | 0 | 49251 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6505 | 258 | 3.966180% |
| B | 6506 | 117 | 1.798340% |
| C | 6506 | 41 | 0.630188% |
| D | 6506 | 4859 | 74.684906% |
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 | 7560 | 6506 | 139 | 139 | 1.84% | 2.14% |  |
| B | 7561 | 6507 | 43 | 43 | 0.57% | 0.66% |  |
| C | 7561 | 6507 | 14 | 14 | 0.19% | 0.22% |  |
| D | 7560 | 6505 | 4821 | 4821 | 63.77% | 74.11% |  |
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 | 525024 | 2927.74 | 729 | 712 | 179.1 |
| A | 13 | 248 | 330506 | 1841.56 | 729 | 712 | 179.1 |
| A | 10 | 251 | 255940 | 1425.18 | 729 | 712 | 179.1 |
| B | 4 | 236 | 187925 | 1184.85 | 733 | 705 | 158.0 |
| B | 5 | 185 | 80897 | 507.51 | 733 | 705 | 158.0 |
| B | 5 | 236 | 80241 | 503.36 | 733 | 705 | 158.0 |
| C | 12 | 252 | 125252 | 624.15 | 727 | 722 | 199.5 |
| C | 5 | 250 | 96844 | 481.77 | 727 | 722 | 199.5 |
| C | 6 | 12 | 50839 | 251.19 | 727 | 722 | 199.5 |
| D | 12 | 1 | 12104112 | 120052.62 | 347 | 332 | 100.8 |
| D | 12 | 110 | 737710 | 7313.76 | 347 | 332 | 100.8 |
| D | 12 | 218 | 290666 | 2879.71 | 347 | 332 | 100.8 |
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 |  |  |