Observation information
- date-obs: 2026-09-01
- time-obs: 21:33:42.427400000
- date-end: 2026-09-01
- time-end: 23:54:15.400500000
- obs_id: T05_264T01_9000006602
- exposure: 2492.86249632
- 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_59138cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59138cztM0_level2_quad_clean.evt
|
| Size (bytes) | 692,798,400 | 86,866,560 |
| Size | 660.7 MB
| 82.8 MB
|
| Events in quadrant A | 3,224,123 | 649,619 |
| Events in quadrant B | 3,860,979 | 691,203 |
| Events in quadrant C | 4,527,613 | 605,727 |
| Events in quadrant D | 13,536,645 | 238,065 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13968 | 2 |
| B | 0 | 15778 | 2 |
| C | 0 | 17751 | 3 |
| D | 0 | 44494 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6385 | 59 | 0.924041% |
| B | 6385 | 335 | 5.246672% |
| C | 6384 | 500 | 7.832080% |
| D | 6384 | 4115 | 64.458020% |
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 | 7600 | 6386 | 15 | 15 | 0.20% | 0.23% |  |
| B | 7600 | 6386 | 217 | 217 | 2.86% | 3.40% |  |
| C | 7599 | 6385 | 414 | 414 | 5.45% | 6.48% |  |
| D | 7598 | 6384 | 4042 | 4042 | 53.20% | 63.31% |  |
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 | 209856 | 1161.01 | 726 | 707 | 180.1 |
| A | 10 | 251 | 140833 | 777.85 | 726 | 707 | 180.1 |
| A | 15 | 233 | 20146 | 107.91 | 726 | 707 | 180.1 |
| B | 4 | 236 | 652930 | 4276.85 | 714 | 689 | 152.5 |
| B | 5 | 236 | 157574 | 1028.72 | 714 | 689 | 152.5 |
| B | 4 | 201 | 113855 | 742.05 | 714 | 689 | 152.5 |
| C | 15 | 219 | 1474566 | 7668.92 | 693 | 686 | 192.2 |
| C | 12 | 252 | 147406 | 763.42 | 693 | 686 | 192.2 |
| C | 5 | 250 | 94603 | 488.67 | 693 | 686 | 192.2 |
| D | 12 | 1 | 10769170 | 84006.55 | 444 | 423 | 128.2 |
| D | 12 | 110 | 401440 | 3128.32 | 444 | 423 | 128.2 |
| D | 5 | 38 | 183881 | 1431.15 | 444 | 423 | 128.2 |
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 |  |  |