Observation information
- date-obs: 2025-12-30
- time-obs: 11:30:42.935200000
- date-end: 2025-12-30
- time-end: 13:35:36.920300000
- obs_id: A14_099T01_9000006536
- exposure: 4084.65225589
- 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_55490cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55490cztM0_level2_quad_clean.evt
|
| Size (bytes) | 555,943,680 | 88,297,920 |
| Size | 530.2 MB
| 84.2 MB
|
| Events in quadrant A | 2,921,294 | 634,572 |
| Events in quadrant B | 3,152,535 | 669,559 |
| Events in quadrant C | 5,483,094 | 550,116 |
| Events in quadrant D | 8,530,706 | 378,662 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 2 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 2 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13228 | 94 |
| B | 0 | 14056 | 113 |
| C | 0 | 20796 | 155 |
| D | 0 | 30014 | 391 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6321 | 99 | 1.566208% |
| B | 6325 | 188 | 2.972332% |
| C | 6321 | 683 | 10.805252% |
| D | 6306 | 2358 | 37.392959% |
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 | 7485 | 6331 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7474 | 6340 | 42 | 42 | 0.56% | 0.66% |  |
| C | 7471 | 6337 | 578 | 578 | 7.74% | 9.12% |  |
| D | 7462 | 6317 | 1963 | 1963 | 26.31% | 31.07% |  |
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 | 159 | 83299 | 477.53 | 694 | 675 | 173.0 |
| A | 3 | 78 | 60540 | 346.0 | 694 | 675 | 173.0 |
| A | 4 | 3 | 28703 | 161.99 | 694 | 675 | 173.0 |
| B | 5 | 172 | 135634 | 939.88 | 676 | 652 | 143.6 |
| B | 0 | 171 | 121541 | 841.75 | 676 | 652 | 143.6 |
| B | 10 | 247 | 52304 | 359.65 | 676 | 652 | 143.6 |
| C | 9 | 38 | 2494377 | 13983.64 | 650 | 641 | 178.3 |
| C | 15 | 147 | 138581 | 773.5 | 650 | 641 | 178.3 |
| C | 13 | 3 | 74858 | 416.17 | 650 | 641 | 178.3 |
| D | 7 | 70 | 4900619 | 31364.56 | 554 | 530 | 156.2 |
| D | 11 | 129 | 786682 | 5032.01 | 554 | 530 | 156.2 |
| D | 2 | 249 | 155168 | 989.81 | 554 | 530 | 156.2 |
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 |  |