Observation information
- date-obs: 2025-12-27
- time-obs: 04:58:26.504000000
- date-end: 2025-12-27
- time-end: 07:30:58.484800000
- obs_id: A14_099T01_9000006536
- exposure: 7390.45415825
- 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_55441cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55441cztM0_level2_quad_clean.evt
|
| Size (bytes) | 453,602,880 | 109,296,000 |
| Size | 432.6 MB
| 104.2 MB
|
| Events in quadrant A | 3,604,134 | 708,749 |
| Events in quadrant B | 3,772,203 | 752,529 |
| Events in quadrant C | 4,487,489 | 669,872 |
| Events in quadrant D | 4,327,021 | 641,747 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16455 | 2 |
| B | 0 | 17016 | 2 |
| C | 0 | 19048 | 2 |
| D | 0 | 18349 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7712 | 116 | 1.504149% |
| B | 7713 | 253 | 3.280176% |
| C | 7713 | 298 | 3.863607% |
| D | 7712 | 142 | 1.841286% |
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 | 9152 | 7714 | 24 | 24 | 0.26% | 0.31% |  |
| B | 9153 | 7714 | 81 | 81 | 0.88% | 1.05% |  |
| C | 9153 | 7715 | 216 | 216 | 2.36% | 2.80% |  |
| D | 9152 | 7714 | 88 | 88 | 0.96% | 1.14% |  |
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 | 159248 | 787.4 | 819 | 798 | 201.2 |
| A | 4 | 249 | 113703 | 561.07 | 819 | 798 | 201.2 |
| A | 0 | 8 | 87419 | 430.45 | 819 | 798 | 201.2 |
| B | 12 | 32 | 431886 | 2494.56 | 806 | 773 | 172.8 |
| B | 10 | 247 | 26314 | 147.79 | 806 | 773 | 172.8 |
| B | 0 | 182 | 22245 | 124.24 | 806 | 773 | 172.8 |
| C | 13 | 3 | 1295796 | 6034.9 | 791 | 784 | 214.6 |
| C | 12 | 112 | 24362 | 109.87 | 791 | 784 | 214.6 |
| C | 14 | 254 | 24359 | 109.86 | 791 | 784 | 214.6 |
| D | 11 | 129 | 801107 | 3632.51 | 789 | 752 | 220.3 |
| D | 8 | 48 | 101099 | 455.44 | 789 | 752 | 220.3 |
| D | 2 | 31 | 73660 | 330.9 | 789 | 752 | 220.3 |
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 |  |