Observation information
- date-obs: 2025-12-29
- time-obs: 03:48:57.166500000
- date-end: 2025-12-29
- time-end: 06:20:10.146800000
- obs_id: A14_099T01_9000006536
- exposure: 6654.35512429
- 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_55470cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55470cztM0_level2_quad_clean.evt
|
| Size (bytes) | 475,358,400 | 103,728,960 |
| Size | 453.3 MB
| 98.9 MB
|
| Events in quadrant A | 3,362,750 | 688,463 |
| Events in quadrant B | 4,475,054 | 712,810 |
| Events in quadrant C | 5,039,368 | 598,334 |
| Events in quadrant D | 4,137,008 | 620,541 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 2 |
| B | 0 | 154 | 2 |
| C | 0 | 154 | 2 |
| D | 0 | 154 | 2 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15649 | 191 |
| B | 0 | 19048 | 242 |
| C | 0 | 21114 | 314 |
| D | 0 | 18009 | 271 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7476 | 70 | 0.936330% |
| B | 7482 | 379 | 5.065491% |
| C | 7479 | 791 | 10.576280% |
| D | 7484 | 183 | 2.445216% |
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 | 8958 | 7492 | 6 | 6 | 0.07% | 0.08% |  |
| B | 8958 | 7491 | 175 | 175 | 1.95% | 2.34% |  |
| C | 8958 | 7492 | 713 | 713 | 7.96% | 9.52% |  |
| D | 8959 | 7496 | 147 | 147 | 1.64% | 1.96% |  |
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 | 124447 | 625.5 | 795 | 774 | 197.7 |
| A | 4 | 3 | 31362 | 154.71 | 795 | 774 | 197.7 |
| A | 3 | 14 | 28936 | 142.44 | 795 | 774 | 197.7 |
| B | 5 | 172 | 665176 | 4035.34 | 774 | 744 | 164.7 |
| B | 0 | 171 | 531711 | 3224.76 | 774 | 744 | 164.7 |
| B | 10 | 247 | 103358 | 623.21 | 774 | 744 | 164.7 |
| C | 9 | 38 | 1911773 | 9775.68 | 715 | 709 | 195.5 |
| C | 13 | 3 | 159014 | 809.78 | 715 | 709 | 195.5 |
| C | 12 | 252 | 135233 | 688.13 | 715 | 709 | 195.5 |
| D | 8 | 160 | 586777 | 2699.6 | 768 | 735 | 217.1 |
| D | 11 | 129 | 193103 | 886.14 | 768 | 735 | 217.1 |
| D | 2 | 249 | 129302 | 592.24 | 768 | 735 | 217.1 |
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 |  |