Observation information
- date-obs: 2026-09-02
- time-obs: 20:02:02.255800000
- date-end: 2026-09-02
- time-end: 22:24:51.234100000
- obs_id: T05_264T01_9000006602
- exposure: 2326.77180725
- 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_59152cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59152cztM0_level2_quad_clean.evt
|
| Size (bytes) | 620,884,800 | 86,587,200 |
| Size | 592.1 MB
| 82.6 MB
|
| Events in quadrant A | 3,221,368 | 638,214 |
| Events in quadrant B | 3,105,256 | 703,310 |
| Events in quadrant C | 3,525,663 | 623,437 |
| Events in quadrant D | 12,646,367 | 222,231 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13782 | 2 |
| B | 0 | 13393 | 2 |
| C | 0 | 14748 | 2 |
| D | 0 | 41845 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6230 | 94 | 1.508828% |
| B | 6230 | 119 | 1.910112% |
| C | 6230 | 189 | 3.033708% |
| D | 6229 | 4026 | 64.633167% |
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 | 7440 | 6231 | 29 | 29 | 0.39% | 0.47% |  |
| B | 7440 | 6231 | 31 | 31 | 0.42% | 0.50% |  |
| C | 7440 | 6231 | 142 | 142 | 1.91% | 2.28% |  |
| D | 7438 | 6228 | 3978 | 3978 | 53.48% | 63.87% |  |
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 | 254 | 149231 | 845.03 | 714 | 696 | 175.8 |
| A | 3 | 14 | 116838 | 660.75 | 714 | 696 | 175.8 |
| A | 10 | 251 | 108108 | 611.08 | 714 | 696 | 175.8 |
| B | 4 | 236 | 132874 | 871.7 | 714 | 690 | 151.6 |
| B | 5 | 236 | 53946 | 351.2 | 714 | 690 | 151.6 |
| B | 5 | 185 | 23681 | 151.62 | 714 | 690 | 151.6 |
| C | 5 | 250 | 386757 | 2005.63 | 698 | 692 | 192.5 |
| C | 14 | 254 | 288784 | 1496.65 | 698 | 692 | 192.5 |
| C | 5 | 233 | 39251 | 200.32 | 698 | 692 | 192.5 |
| D | 12 | 1 | 9048546 | 87560.25 | 358 | 341 | 103.3 |
| D | 12 | 110 | 1789421 | 17313.08 | 358 | 341 | 103.3 |
| D | 6 | 239 | 170373 | 1645.41 | 358 | 341 | 103.3 |
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 |  |  |