Observation information
- date-obs: 2025-09-15
- time-obs: 15:56:54.182000000
- date-end: 2025-09-15
- time-end: 17:59:12.164500000
- obs_id: A14_057T04_9000006508
- exposure: 3047.76483631
- sourceid: Abell_2142
- observer: divya_astro
- ra_pnt: 239.5833
- dec_pnt: 27.23341
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_057T04_9000006508_53918cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53918cztM0_level2_quad_clean.evt
|
| Size (bytes) | 531,054,720 | 82,442,880 |
| Size | 506.5 MB
| 78.6 MB
|
| Events in quadrant A | 2,827,187 | 618,990 |
| Events in quadrant B | 3,711,180 | 635,553 |
| Events in quadrant C | 4,400,531 | 533,493 |
| Events in quadrant D | 8,229,079 | 270,002 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13007 | 1 |
| B | 0 | 15415 | 1 |
| C | 0 | 17596 | 1 |
| D | 0 | 28785 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6283 | 25 | 0.397899% |
| B | 6284 | 238 | 3.787397% |
| C | 6283 | 573 | 9.119847% |
| D | 6283 | 3351 | 53.334394% |
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 | 7338 | 6283 | 7 | 7 | 0.10% | 0.11% |  |
| B | 7339 | 6285 | 171 | 171 | 2.33% | 2.72% |  |
| C | 7338 | 6284 | 554 | 554 | 7.55% | 8.82% |  |
| D | 7338 | 6284 | 1576 | 1576 | 21.48% | 25.08% |  |
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 | 0 | 8 | 44694 | 264.09 | 677 | 663 | 166.7 |
| A | 4 | 3 | 29058 | 170.31 | 677 | 663 | 166.7 |
| A | 15 | 174 | 25305 | 147.8 | 677 | 663 | 166.7 |
| B | 0 | 213 | 381457 | 2673.11 | 664 | 639 | 142.5 |
| B | 5 | 236 | 269453 | 1886.91 | 664 | 639 | 142.5 |
| B | 5 | 185 | 174842 | 1222.8 | 664 | 639 | 142.5 |
| C | 13 | 3 | 1310935 | 7629.44 | 613 | 608 | 171.7 |
| C | 1 | 241 | 358251 | 2082.39 | 613 | 608 | 171.7 |
| C | 15 | 164 | 76711 | 443.11 | 613 | 608 | 171.7 |
| D | 8 | 176 | 5894773 | 52284.44 | 392 | 374 | 112.7 |
| D | 3 | 12 | 295877 | 2621.17 | 392 | 374 | 112.7 |
| D | 3 | 224 | 127716 | 1129.55 | 392 | 374 | 112.7 |
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 |  |