Observation information
- date-obs: 2025-12-26
- time-obs: 18:47:56.574100000
- date-end: 2025-12-26
- time-end: 21:04:16.549900000
- obs_id: A14_099T01_9000006536
- exposure: 6860.72883093
- 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_55435cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55435cztM0_level2_quad_clean.evt
|
| Size (bytes) | 506,226,240 | 108,169,920 |
| Size | 482.8 MB
| 103.2 MB
|
| Events in quadrant A | 3,773,393 | 711,752 |
| Events in quadrant B | 3,811,763 | 763,000 |
| Events in quadrant C | 3,660,341 | 680,598 |
| Events in quadrant D | 6,902,808 | 592,230 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 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 | 17115 | 2 |
| B | 0 | 17019 | 2 |
| C | 0 | 16710 | 2 |
| D | 0 | 25942 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7599 | 166 | 2.184498% |
| B | 7599 | 121 | 1.592315% |
| C | 7599 | 105 | 1.381761% |
| D | 7598 | 815 | 10.726507% |
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 | 7759 | 7603 | 74 | 74 | 0.95% | 0.97% |  |
| B | 7759 | 7603 | 26 | 26 | 0.34% | 0.34% |  |
| C | 7759 | 7603 | 50 | 50 | 0.64% | 0.66% |  |
| D | 7758 | 7602 | 717 | 717 | 9.24% | 9.43% |  |
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 | 513733 | 2584.07 | 805 | 784 | 198.5 |
| A | 4 | 159 | 68964 | 343.47 | 805 | 784 | 198.5 |
| A | 4 | 3 | 32873 | 161.65 | 805 | 784 | 198.5 |
| B | 5 | 185 | 254507 | 1492.65 | 801 | 771 | 170.0 |
| B | 10 | 247 | 121333 | 709.23 | 801 | 771 | 170.0 |
| B | 9 | 254 | 91327 | 532.71 | 801 | 771 | 170.0 |
| C | 13 | 3 | 158643 | 725.27 | 795 | 782 | 217.7 |
| C | 15 | 1 | 100856 | 459.78 | 795 | 782 | 217.7 |
| C | 12 | 252 | 61686 | 279.81 | 795 | 782 | 217.7 |
| D | 11 | 129 | 2842304 | 13224.92 | 760 | 726 | 214.9 |
| D | 3 | 12 | 400855 | 1862.23 | 760 | 726 | 214.9 |
| D | 10 | 181 | 201720 | 935.44 | 760 | 726 | 214.9 |
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 |  |