Observation information
- date-obs: 2026-09-02
- time-obs: 18:23:42.269000000
- date-end: 2026-09-02
- time-end: 20:43:28.248400000
- obs_id: T05_264T01_9000006602
- exposure: 1645.18247157
- 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_59151cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59151cztM0_level2_quad_clean.evt
|
| Size (bytes) | 669,326,400 | 86,541,120 |
| Size | 638.3 MB
| 82.5 MB
|
| Events in quadrant A | 3,124,169 | 651,476 |
| Events in quadrant B | 3,235,040 | 719,827 |
| Events in quadrant C | 3,640,826 | 642,414 |
| Events in quadrant D | 14,279,398 | 160,959 |
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 | 13829 | 18 |
| B | 0 | 13898 | 7 |
| C | 0 | 15107 | 17 |
| D | 0 | 46860 | 88 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 1 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6385 | 102 | 1.597494% |
| B | 6391 | 114 | 1.783758% |
| C | 6388 | 141 | 2.207264% |
| D | 6381 | 4889 | 76.618085% |
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 | 7612 | 6394 | 36 | 36 | 0.47% | 0.56% |  |
| B | 7612 | 6393 | 31 | 31 | 0.41% | 0.48% |  |
| C | 7612 | 6394 | 94 | 94 | 1.23% | 1.47% |  |
| D | 7610 | 6381 | 4596 | 4596 | 60.39% | 72.03% |  |
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 | 182908 | 1007.15 | 729 | 712 | 180.9 |
| A | 3 | 254 | 23929 | 128.34 | 729 | 712 | 180.9 |
| A | 15 | 233 | 22057 | 117.99 | 729 | 712 | 180.9 |
| B | 4 | 236 | 166174 | 1059.48 | 731 | 705 | 156.2 |
| B | 10 | 128 | 66064 | 418.49 | 731 | 705 | 156.2 |
| B | 5 | 236 | 32412 | 203.02 | 731 | 705 | 156.2 |
| C | 5 | 250 | 366007 | 1835.93 | 716 | 710 | 199.0 |
| C | 14 | 254 | 325364 | 1631.66 | 716 | 710 | 199.0 |
| C | 12 | 252 | 36863 | 181.7 | 716 | 710 | 199.0 |
| D | 12 | 1 | 10772006 | 121650.0 | 308 | 293 | 88.5 |
| D | 12 | 110 | 1565390 | 17675.37 | 308 | 293 | 88.5 |
| D | 5 | 38 | 258862 | 2920.14 | 308 | 293 | 88.5 |
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 |  |  |