Observation information
- date-obs: 2025-12-25
- time-obs: 09:51:16.801500000
- date-end: 2025-12-25
- time-end: 12:07:58.785500000
- obs_id: A14_099T01_9000006536
- exposure: 4683.60611296
- 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_55415cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55415cztM0_level2_quad_clean.evt
|
| Size (bytes) | 504,976,320 | 93,473,280 |
| Size | 481.6 MB
| 89.1 MB
|
| Events in quadrant A | 3,169,803 | 648,932 |
| Events in quadrant B | 3,146,873 | 692,959 |
| Events in quadrant C | 3,326,367 | 610,511 |
| Events in quadrant D | 8,537,806 | 418,488 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14256 | 2 |
| B | 0 | 14255 | 2 |
| C | 0 | 14841 | 3 |
| D | 0 | 29932 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6578 | 139 | 2.113104% |
| B | 6578 | 146 | 2.219520% |
| C | 6577 | 103 | 1.566064% |
| D | 6577 | 2061 | 31.336476% |
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 | 7643 | 6579 | 44 | 44 | 0.58% | 0.67% |  |
| B | 7643 | 6579 | 40 | 40 | 0.52% | 0.61% |  |
| C | 7642 | 6578 | 30 | 30 | 0.39% | 0.46% |  |
| D | 7642 | 6577 | 1690 | 1690 | 22.11% | 25.70% |  |
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 | 3 | 78 | 145888 | 815.08 | 718 | 700 | 178.1 |
| A | 15 | 32 | 96322 | 536.82 | 718 | 700 | 178.1 |
| A | 4 | 159 | 79160 | 440.47 | 718 | 700 | 178.1 |
| B | 5 | 172 | 105412 | 700.63 | 702 | 678 | 149.5 |
| B | 10 | 247 | 79780 | 529.16 | 702 | 678 | 149.5 |
| B | 5 | 185 | 73939 | 490.09 | 702 | 678 | 149.5 |
| C | 13 | 3 | 298917 | 1573.67 | 688 | 682 | 189.5 |
| C | 12 | 252 | 168645 | 886.28 | 688 | 682 | 189.5 |
| C | 9 | 38 | 115882 | 607.87 | 688 | 682 | 189.5 |
| D | 11 | 129 | 5342094 | 33670.67 | 558 | 533 | 158.6 |
| D | 10 | 181 | 483595 | 3044.99 | 558 | 533 | 158.6 |
| D | 2 | 31 | 123556 | 775.48 | 558 | 533 | 158.6 |
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 |  |