Observation information
- date-obs: 2025-09-18
- time-obs: 20:12:45.553200000
- date-end: 2025-09-18
- time-end: 22:19:40.524400000
- obs_id: A14_057T04_9000006508
- exposure: 3890.70713043
- 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_53965cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53965cztM0_level2_quad_clean.evt
|
| Size (bytes) | 722,102,400 | 84,009,600 |
| Size | 688.7 MB
| 80.1 MB
|
| Events in quadrant A | 3,429,690 | 644,152 |
| Events in quadrant B | 6,704,996 | 585,858 |
| Events in quadrant C | 5,676,417 | 515,349 |
| Events in quadrant D | 10,422,443 | 351,472 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14627 | 2 |
| B | 0 | 24345 | 2 |
| C | 0 | 21224 | 2 |
| D | 0 | 35420 | 15 |
| 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 M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6405 | 53 | 0.827479% |
| B | 6406 | 1083 | 16.906026% |
| C | 6406 | 1066 | 16.640649% |
| D | 6403 | 2704 | 42.230205% |
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 | 7615 | 6406 | 26 | 26 | 0.34% | 0.41% |  |
| B | 7616 | 6407 | 799 | 799 | 10.49% | 12.47% |  |
| C | 7615 | 6405 | 956 | 956 | 12.55% | 14.93% |  |
| D | 7614 | 6404 | 2326 | 2326 | 30.55% | 36.32% |  |
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 | 149086 | 849.3 | 705 | 686 | 174.7 |
| A | 7 | 14 | 148422 | 845.5 | 705 | 686 | 174.7 |
| A | 0 | 8 | 138804 | 790.45 | 705 | 686 | 174.7 |
| B | 5 | 250 | 3192570 | 22414.98 | 668 | 644 | 142.4 |
| B | 0 | 213 | 447005 | 3134.52 | 668 | 644 | 142.4 |
| B | 1 | 255 | 88152 | 614.52 | 668 | 644 | 142.4 |
| C | 1 | 241 | 2582187 | 14942.61 | 617 | 612 | 172.8 |
| C | 12 | 2 | 185952 | 1072.78 | 617 | 612 | 172.8 |
| C | 9 | 38 | 112613 | 648.28 | 617 | 612 | 172.8 |
| D | 8 | 176 | 6523616 | 44483.81 | 500 | 477 | 146.6 |
| D | 2 | 165 | 636233 | 4335.47 | 500 | 477 | 146.6 |
| D | 6 | 239 | 478924 | 3262.72 | 500 | 477 | 146.6 |
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 |  |