Observation information
- date-obs: 2025-09-13
- time-obs: 04:58:15.654900000
- date-end: 2025-09-13
- time-end: 07:00:44.639800000
- obs_id: A14_057T04_9000006508
- exposure: 3598.37436754
- 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_53881cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53881cztM0_level2_quad_clean.evt
|
| Size (bytes) | 893,324,160 | 90,126,720 |
| Size | 851.9 MB
| 86.0 MB
|
| Events in quadrant A | 5,199,991 | 636,761 |
| Events in quadrant B | 4,039,987 | 729,227 |
| Events in quadrant C | 9,626,022 | 540,980 |
| Events in quadrant D | 13,633,248 | 309,665 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20672 | 0 |
| B | 0 | 17217 | 0 |
| C | 0 | 33687 | 0 |
| D | 0 | 45556 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7349 | 677 | 9.212138% |
| B | 7348 | 226 | 3.075667% |
| C | 7348 | 1749 | 23.802395% |
| D | 7349 | 4049 | 55.095931% |
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 | 7349 | 7349 | 546 | 546 | 7.43% | 7.43% |  |
| B | 7348 | 7348 | 122 | 122 | 1.66% | 1.66% |  |
| C | 7348 | 7348 | 1380 | 1380 | 18.78% | 18.78% |  |
| D | 7349 | 7349 | 3561 | 3561 | 48.46% | 48.46% |  |
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 | 15 | 174 | 1795581 | 9432.56 | 769 | 748 | 190.3 |
| A | 3 | 62 | 309858 | 1624.5 | 769 | 748 | 190.3 |
| A | 10 | 253 | 48824 | 252.66 | 769 | 748 | 190.3 |
| B | 0 | 213 | 444439 | 2618.77 | 785 | 756 | 169.4 |
| B | 5 | 185 | 224718 | 1321.9 | 785 | 756 | 169.4 |
| B | 7 | 129 | 58702 | 342.02 | 785 | 756 | 169.4 |
| C | 15 | 209 | 2844447 | 14801.84 | 703 | 695 | 192.1 |
| C | 15 | 224 | 2385605 | 12413.55 | 703 | 695 | 192.1 |
| C | 15 | 158 | 522310 | 2715.03 | 703 | 695 | 192.1 |
| D | 8 | 176 | 9865295 | 63675.78 | 542 | 516 | 154.9 |
| D | 6 | 239 | 864002 | 5573.68 | 542 | 516 | 154.9 |
| D | 2 | 172 | 376585 | 2427.47 | 542 | 516 | 154.9 |
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 |  |