Observation information
- date-obs: 2026-01-18
- time-obs: 06:26:45.181800000
- date-end: 2026-01-18
- time-end: 08:27:12.164200000
- obs_id: A14_099T04_9000006540
- exposure: 5568.38794988
- sourceid: FRB20220912A
- observer: ramadevi
- ra_pnt: 347.2704
- dec_pnt: 48.70692
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_099T04_9000006540_55769cztM0_level2.fits
| modeM0/AS1A14_099T04_9000006540_55769cztM0_level2_quad_clean.evt
|
| Size (bytes) | 649,607,040 | 95,955,840 |
| Size | 619.5 MB
| 91.5 MB
|
| Events in quadrant A | 9,531,571 | 516,269 |
| Events in quadrant B | 3,524,737 | 698,207 |
| Events in quadrant C | 3,665,954 | 641,568 |
| Events in quadrant D | 6,765,834 | 547,990 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33199 | 2 |
| B | 0 | 15696 | 3 |
| C | 0 | 16532 | 2 |
| D | 0 | 25198 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7197 | 1879 | 26.108101% |
| B | 7197 | 317 | 4.404613% |
| C | 7197 | 231 | 3.209671% |
| D | 7197 | 970 | 13.477838% |
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 | 7227 | 7197 | 1580 | 1580 | 21.86% | 21.95% |  |
| B | 7227 | 7199 | 6 | 6 | 0.08% | 0.08% |  |
| C | 7227 | 7199 | 76 | 76 | 1.05% | 1.06% |  |
| D | 7226 | 7198 | 925 | 925 | 12.80% | 12.85% |  |
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 | 32 | 5463765 | 31052.11 | 722 | 703 | 175.9 |
| A | 7 | 64 | 322045 | 1826.51 | 722 | 703 | 175.9 |
| A | 3 | 14 | 295902 | 1677.91 | 722 | 703 | 175.9 |
| B | 5 | 172 | 211874 | 1268.9 | 764 | 735 | 166.4 |
| B | 7 | 0 | 145621 | 870.73 | 764 | 735 | 166.4 |
| B | 0 | 199 | 55646 | 330.0 | 764 | 735 | 166.4 |
| C | 9 | 38 | 480469 | 2343.62 | 749 | 741 | 204.7 |
| C | 13 | 3 | 69179 | 334.34 | 749 | 741 | 204.7 |
| C | 6 | 223 | 68103 | 329.08 | 749 | 741 | 204.7 |
| D | 7 | 70 | 2630741 | 12933.83 | 729 | 696 | 203.3 |
| D | 11 | 129 | 653835 | 3211.95 | 729 | 696 | 203.3 |
| D | 8 | 240 | 163851 | 802.35 | 729 | 696 | 203.3 |
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 |  |