Observation information
- date-obs: 2025-12-26
- time-obs: 06:34:25.659900000
- date-end: 2025-12-26
- time-end: 08:56:59.643200000
- obs_id: A14_099T01_9000006536
- exposure: 5118.64787287
- 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_55427cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55427cztM0_level2_quad_clean.evt
|
| Size (bytes) | 515,940,480 | 94,426,560 |
| Size | 492.0 MB
| 90.1 MB
|
| Events in quadrant A | 3,272,978 | 642,433 |
| Events in quadrant B | 3,045,614 | 691,262 |
| Events in quadrant C | 3,271,607 | 611,062 |
| Events in quadrant D | 8,968,199 | 430,540 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14823 | 2 |
| B | 0 | 14429 | 2 |
| C | 0 | 15200 | 2 |
| D | 0 | 31451 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6939 | 149 | 2.147283% |
| B | 6940 | 152 | 2.190202% |
| C | 6940 | 163 | 2.348703% |
| D | 6940 | 2007 | 28.919308% |
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 | 8554 | 6941 | 24 | 24 | 0.28% | 0.35% |  |
| B | 8555 | 6942 | 4 | 4 | 0.05% | 0.06% |  |
| C | 8555 | 6942 | 57 | 57 | 0.67% | 0.82% |  |
| D | 8555 | 6942 | 1609 | 1609 | 18.81% | 23.18% |  |
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 | 119620 | 652.33 | 742 | 723 | 182.3 |
| A | 3 | 78 | 118214 | 644.61 | 742 | 723 | 182.3 |
| A | 0 | 8 | 82989 | 451.35 | 742 | 723 | 182.3 |
| B | 10 | 247 | 38399 | 240.92 | 733 | 705 | 156.5 |
| B | 0 | 199 | 34806 | 217.96 | 733 | 705 | 156.5 |
| B | 12 | 111 | 19612 | 120.85 | 733 | 705 | 156.5 |
| C | 13 | 3 | 322713 | 1645.67 | 714 | 706 | 195.7 |
| C | 12 | 252 | 71379 | 361.19 | 714 | 706 | 195.7 |
| C | 10 | 19 | 48338 | 243.43 | 714 | 706 | 195.7 |
| D | 11 | 129 | 6060438 | 34562.12 | 623 | 596 | 175.3 |
| D | 2 | 249 | 154760 | 879.27 | 623 | 596 | 175.3 |
| D | 10 | 181 | 50953 | 287.21 | 623 | 596 | 175.3 |
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 |  |