Observation information
- date-obs: 2025-07-14
- time-obs: 11:32:45.917800000
- date-end: 2025-07-14
- time-end: 13:37:26.898500000
- obs_id: A13_003T01_9000006486
- exposure: 1161.06250805
- sourceid: M31N2008-12a
- observer: Judhajeet
- ra_pnt: 11.37
- dec_pnt: 41.90281
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_003T01_9000006486_52979cztM0_level2.fits
| modeM0/AS1A13_003T01_9000006486_52979cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,167,410,880 | 71,680,320 |
| Size | 1.1 GB
| 68.4 MB
|
| Events in quadrant A | 16,345,483 | 76,198 |
| Events in quadrant B | 3,399,932 | 704,931 |
| Events in quadrant C | 12,514,245 | 431,840 |
| Events in quadrant D | 10,436,237 | 482,926 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 53010 | 0 |
| B | 0 | 14850 | 0 |
| C | 0 | 41769 | 0 |
| D | 0 | 35710 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6712 | 6712 | 100.000000% |
| B | 6712 | 161 | 2.398689% |
| C | 6712 | 3650 | 54.380215% |
| D | 6712 | 2389 | 35.592968% |
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 | 7482 | 6713 | 5978 | 5978 | 79.90% | 89.05% |  |
| B | 7482 | 6713 | 47 | 47 | 0.63% | 0.70% |  |
| C | 7482 | 6713 | 3515 | 3515 | 46.98% | 52.36% |  |
| D | 7482 | 6713 | 2226 | 2226 | 29.75% | 33.16% |  |
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 | 9 | 191 | 15881424 | 587384.88 | 101 | 98 | 27.0 |
| A | 0 | 8 | 14367 | 527.75 | 101 | 98 | 27.0 |
| A | 13 | 248 | 9873 | 361.54 | 101 | 98 | 27.0 |
| B | 10 | 63 | 142130 | 918.51 | 722 | 697 | 154.0 |
| B | 0 | 143 | 108029 | 697.05 | 722 | 697 | 154.0 |
| B | 0 | 151 | 62452 | 401.06 | 722 | 697 | 154.0 |
| C | 7 | 80 | 8507747 | 62277.52 | 501 | 497 | 136.6 |
| C | 5 | 250 | 527666 | 3859.15 | 501 | 497 | 136.6 |
| C | 12 | 254 | 300767 | 2198.13 | 501 | 497 | 136.6 |
| D | 0 | 5 | 3128287 | 18545.66 | 588 | 561 | 168.7 |
| D | 8 | 176 | 2510702 | 14883.72 | 588 | 561 | 168.7 |
| D | 2 | 62 | 1453580 | 8615.59 | 588 | 561 | 168.7 |
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 |  |