Observation information
- date-obs: 2026-09-01
- time-obs: 14:55:53.478300000
- date-end: 2026-09-01
- time-end: 17:01:33.454800000
- obs_id: T05_264T01_9000006602
- exposure: 1091.14792609
- 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_59133cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59133cztM0_level2_quad_clean.evt
|
| Size (bytes) | 717,249,600 | 83,471,040 |
| Size | 684.0 MB
| 79.6 MB
|
| Events in quadrant A | 3,435,677 | 638,958 |
| Events in quadrant B | 3,934,294 | 681,033 |
| Events in quadrant C | 3,334,616 | 639,231 |
| Events in quadrant D | 15,328,419 | 104,882 |
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 | 14978 | 1 |
| B | 0 | 16242 | 1 |
| C | 0 | 14475 | 2 |
| D | 0 | 49975 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6645 | 181 | 2.723853% |
| B | 6646 | 358 | 5.386699% |
| C | 6645 | 96 | 1.444695% |
| D | 6645 | 5612 | 84.454477% |
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 | 7540 | 6645 | 66 | 66 | 0.88% | 0.99% |  |
| B | 7541 | 6646 | 179 | 179 | 2.37% | 2.69% |  |
| C | 7540 | 6645 | 27 | 27 | 0.36% | 0.41% |  |
| D | 7540 | 6645 | 5223 | 5223 | 69.27% | 78.60% |  |
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 | 323548 | 1749.72 | 745 | 726 | 184.5 |
| A | 13 | 248 | 129466 | 697.78 | 745 | 726 | 184.5 |
| A | 3 | 14 | 25997 | 136.97 | 745 | 726 | 184.5 |
| B | 4 | 236 | 404238 | 2543.46 | 732 | 705 | 158.7 |
| B | 0 | 157 | 160400 | 1006.56 | 732 | 705 | 158.7 |
| B | 6 | 255 | 143351 | 899.1 | 732 | 705 | 158.7 |
| C | 12 | 252 | 151119 | 740.66 | 737 | 730 | 203.0 |
| C | 5 | 250 | 116218 | 568.78 | 737 | 730 | 203.0 |
| C | 4 | 5 | 51471 | 249.9 | 737 | 730 | 203.0 |
| D | 12 | 1 | 13500337 | 184559.1 | 251 | 240 | 73.1 |
| D | 12 | 110 | 384759 | 5256.74 | 251 | 240 | 73.1 |
| D | 12 | 218 | 142703 | 1947.6 | 251 | 240 | 73.1 |
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 |  |  |