Observation information
- date-obs: 2025-12-24
- time-obs: 19:54:36.899900000
- date-end: 2025-12-24
- time-end: 22:13:18.876100000
- obs_id: A14_099T01_9000006536
- exposure: 2540.37616712
- 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_55406cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55406cztM0_level2_quad_clean.evt
|
| Size (bytes) | 723,761,280 | 95,397,120 |
| Size | 690.2 MB
| 91.0 MB
|
| Events in quadrant A | 3,318,897 | 722,637 |
| Events in quadrant B | 3,931,199 | 751,531 |
| Events in quadrant C | 3,599,572 | 679,762 |
| Events in quadrant D | 15,354,519 | 209,296 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15739 | 3 |
| B | 0 | 17445 | 8 |
| C | 0 | 16639 | 2 |
| D | 0 | 50810 | 32 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7553 | 37 | 0.489872% |
| B | 7550 | 231 | 3.059603% |
| C | 7554 | 70 | 0.926661% |
| D | 7548 | 5172 | 68.521463% |
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 | 7699 | 7556 | 3 | 3 | 0.04% | 0.04% |  |
| B | 7699 | 7554 | 104 | 104 | 1.35% | 1.38% |  |
| C | 7699 | 7556 | 23 | 23 | 0.30% | 0.30% |  |
| D | 7698 | 7554 | 4780 | 4780 | 62.09% | 63.28% |  |
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 | 3 | 56081 | 278.97 | 799 | 779 | 198.2 |
| A | 4 | 159 | 51623 | 256.48 | 799 | 779 | 198.2 |
| A | 0 | 8 | 22304 | 108.58 | 799 | 779 | 198.2 |
| B | 5 | 172 | 568830 | 3427.4 | 781 | 752 | 165.7 |
| B | 10 | 247 | 115779 | 693.99 | 781 | 752 | 165.7 |
| B | 5 | 185 | 49515 | 294.2 | 781 | 752 | 165.7 |
| C | 1 | 241 | 408864 | 1909.69 | 783 | 774 | 213.7 |
| C | 13 | 3 | 51339 | 236.62 | 783 | 774 | 213.7 |
| C | 12 | 252 | 51301 | 236.44 | 783 | 774 | 213.7 |
| D | 11 | 129 | 13250596 | 122173.56 | 376 | 359 | 108.5 |
| D | 2 | 249 | 225045 | 2071.71 | 376 | 359 | 108.5 |
| D | 8 | 160 | 110151 | 1012.34 | 376 | 359 | 108.5 |
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 |  |