Observation information
- date-obs: 2025-09-14
- time-obs: 14:06:30.392300000
- date-end: 2025-09-14
- time-end: 15:59:17.369900000
- obs_id: A14_057T04_9000006508
- exposure: 419.993315756
- 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_53901cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53901cztM0_level2_quad_clean.evt
|
| Size (bytes) | 688,944,960 | 67,219,200 |
| Size | 657.0 MB
| 64.1 MB
|
| Events in quadrant A | 3,180,439 | 560,751 |
| Events in quadrant B | 3,146,845 | 591,322 |
| Events in quadrant C | 6,832,354 | 434,273 |
| Events in quadrant D | 11,884,232 | 37,048 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13666 | 1 |
| B | 0 | 13463 | 1 |
| C | 0 | 24410 | 1 |
| D | 0 | 39372 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5887 | 114 | 1.936470% |
| B | 5888 | 42 | 0.713315% |
| C | 5888 | 1258 | 21.365489% |
| D | 5888 | 5560 | 94.429348% |
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 | 6767 | 5888 | 97 | 97 | 1.43% | 1.65% |  |
| B | 6768 | 5889 | 15 | 15 | 0.22% | 0.25% |  |
| C | 6768 | 5889 | 1029 | 1029 | 15.20% | 17.47% |  |
| D | 6767 | 5887 | 3442 | 3442 | 50.86% | 58.47% |  |
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 | 4 | 249 | 412032 | 2669.61 | 623 | 607 | 154.1 |
| A | 15 | 174 | 207018 | 1339.34 | 623 | 607 | 154.1 |
| A | 0 | 8 | 64211 | 412.71 | 623 | 607 | 154.1 |
| B | 5 | 250 | 299882 | 2256.84 | 616 | 594 | 132.6 |
| B | 0 | 213 | 85908 | 643.33 | 616 | 594 | 132.6 |
| B | 10 | 247 | 63329 | 473.07 | 616 | 594 | 132.6 |
| C | 15 | 224 | 3142257 | 20547.92 | 551 | 546 | 152.9 |
| C | 2 | 12 | 861386 | 5630.2 | 551 | 546 | 152.9 |
| C | 15 | 174 | 149542 | 974.49 | 551 | 546 | 152.9 |
| D | 8 | 176 | 11090933 | 268520.08 | 141 | 134 | 41.3 |
| D | 7 | 70 | 43153 | 1041.54 | 141 | 134 | 41.3 |
| D | 3 | 224 | 41537 | 1002.41 | 141 | 134 | 41.3 |
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 |  |