Observation information
- date-obs: 2025-12-24
- time-obs: 16:39:27.922100000
- date-end: 2025-12-24
- time-end: 18:45:43.900800000
- obs_id: A14_099T01_9000006536
- exposure: 6214.39004666
- sourceid: FRB20180916B
- observer: ramadevi
- ra_pnt: 29.50312
- dec_pnt: 65.71675
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_099T01_9000006536_55404cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55404cztM0_level2_quad_clean.evt
|
| Size (bytes) | 423,377,280 | 96,848,640 |
| Size | 403.8 MB
| 92.4 MB
|
| Events in quadrant A | 4,711,386 | 620,640 |
| Events in quadrant B | 3,126,281 | 680,943 |
| Events in quadrant C | 2,803,854 | 612,294 |
| Events in quadrant D | 4,519,441 | 560,434 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18761 | 6 |
| B | 0 | 14252 | 2 |
| C | 0 | 13522 | 2 |
| D | 0 | 17970 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6570 | 326 | 4.961948% |
| B | 6571 | 112 | 1.704459% |
| C | 6571 | 61 | 0.928321% |
| D | 6570 | 304 | 4.627093% |
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 | 7575 | 6571 | 288 | 288 | 3.80% | 4.38% |  |
| B | 7576 | 6572 | 43 | 43 | 0.57% | 0.65% |  |
| C | 7576 | 6572 | 4 | 4 | 0.05% | 0.06% |  |
| D | 7576 | 6572 | 221 | 221 | 2.92% | 3.36% |  |
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 | 12 | 115 | 1702889 | 9886.18 | 692 | 675 | 172.2 |
| A | 0 | 8 | 72860 | 419.24 | 692 | 675 | 172.2 |
| A | 4 | 159 | 65811 | 378.3 | 692 | 675 | 172.2 |
| B | 5 | 236 | 223950 | 1532.4 | 690 | 664 | 145.7 |
| B | 10 | 247 | 39475 | 266.35 | 690 | 664 | 145.7 |
| B | 5 | 185 | 33252 | 223.65 | 690 | 664 | 145.7 |
| C | 1 | 241 | 21871 | 113.35 | 689 | 682 | 186.9 |
| C | 11 | 244 | 19002 | 98.01 | 689 | 682 | 186.9 |
| C | 12 | 249 | 11390 | 57.28 | 689 | 682 | 186.9 |
| D | 11 | 129 | 598215 | 3111.95 | 674 | 645 | 192.0 |
| D | 8 | 160 | 420008 | 2183.91 | 674 | 645 | 192.0 |
| D | 10 | 181 | 351257 | 1825.88 | 674 | 645 | 192.0 |
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 |  |