Observation information
- date-obs: 2026-09-02
- time-obs: 16:47:02.281400000
- date-end: 2026-09-02
- time-end: 18:57:43.259600000
- obs_id: T05_264T01_9000006602
- exposure: 387.20121038
- 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_59150cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59150cztM0_level2_quad_clean.evt
|
| Size (bytes) | 713,422,080 | 79,128,000 |
| Size | 680.4 MB
| 75.5 MB
|
| Events in quadrant A | 3,047,628 | 627,433 |
| Events in quadrant B | 3,440,762 | 675,730 |
| Events in quadrant C | 3,416,087 | 620,778 |
| Events in quadrant D | 16,017,973 | 35,286 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 2 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13563 | 54 |
| B | 0 | 14723 | 147 |
| C | 0 | 14628 | 71 |
| D | 0 | 52402 | 689 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6263 | 75 | 1.197509% |
| B | 6255 | 225 | 3.597122% |
| C | 6262 | 120 | 1.916321% |
| D | 6204 | 5882 | 94.809800% |
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 | 7512 | 6288 | 25 | 25 | 0.33% | 0.40% |  |
| B | 7512 | 6279 | 171 | 171 | 2.28% | 2.72% |  |
| C | 7512 | 6286 | 80 | 80 | 1.06% | 1.27% |  |
| D | 7511 | 6204 | 5778 | 5778 | 76.93% | 93.13% |  |
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 | 187442 | 1055.85 | 714 | 696 | 176.9 |
| A | 3 | 14 | 29285 | 161.64 | 714 | 696 | 176.9 |
| A | 15 | 233 | 24353 | 133.75 | 714 | 696 | 176.9 |
| B | 0 | 186 | 342432 | 2275.76 | 699 | 671 | 150.2 |
| B | 4 | 236 | 214803 | 1425.89 | 699 | 671 | 150.2 |
| B | 5 | 236 | 41267 | 270.33 | 699 | 671 | 150.2 |
| C | 5 | 250 | 327748 | 1689.23 | 698 | 692 | 193.6 |
| C | 14 | 254 | 138323 | 710.86 | 698 | 692 | 193.6 |
| C | 12 | 252 | 79355 | 406.29 | 698 | 692 | 193.6 |
| D | 12 | 1 | 14067752 | 268361.74 | 175 | 166 | 52.4 |
| D | 12 | 110 | 1010896 | 19281.29 | 175 | 166 | 52.4 |
| D | 13 | 66 | 57597 | 1095.59 | 175 | 166 | 52.4 |
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 |  |  |