Observation information
- date-obs: 2025-12-27
- time-obs: 06:49:07.489900000
- date-end: 2025-12-27
- time-end: 09:14:25.471500000
- obs_id: A14_099T01_9000006536
- exposure: 6548.24968594
- 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_55443cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55443cztM0_level2_quad_clean.evt
|
| Size (bytes) | 392,402,880 | 98,527,680 |
| Size | 374.2 MB
| 94.0 MB
|
| Events in quadrant A | 3,348,949 | 641,432 |
| Events in quadrant B | 3,033,731 | 688,665 |
| Events in quadrant C | 4,086,707 | 596,770 |
| Events in quadrant D | 3,520,708 | 577,827 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 2 |
| B | 0 | 142 | 2 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15144 | 113 |
| B | 0 | 14356 | 126 |
| C | 0 | 17405 | 190 |
| D | 0 | 15610 | 133 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6873 | 132 | 1.920559% |
| B | 6871 | 132 | 1.921118% |
| C | 6872 | 290 | 4.220023% |
| D | 6874 | 124 | 1.803899% |
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 | 8690 | 6892 | 19 | 19 | 0.22% | 0.28% |  |
| B | 8701 | 6890 | 4 | 4 | 0.05% | 0.06% |  |
| C | 8699 | 6892 | 191 | 191 | 2.20% | 2.77% |  |
| D | 8689 | 6887 | 47 | 47 | 0.54% | 0.68% |  |
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 | 356622 | 1947.58 | 738 | 717 | 182.7 |
| A | 0 | 8 | 52772 | 284.85 | 738 | 717 | 182.7 |
| A | 4 | 3 | 22860 | 121.17 | 738 | 717 | 182.7 |
| B | 0 | 171 | 29762 | 184.42 | 728 | 699 | 157.6 |
| B | 12 | 32 | 28355 | 175.5 | 728 | 699 | 157.6 |
| B | 10 | 247 | 20762 | 127.31 | 728 | 699 | 157.6 |
| C | 13 | 3 | 1138077 | 5890.02 | 703 | 693 | 193.1 |
| C | 12 | 252 | 99629 | 512.34 | 703 | 693 | 193.1 |
| C | 15 | 178 | 31858 | 161.39 | 703 | 693 | 193.1 |
| D | 11 | 129 | 373238 | 1859.1 | 710 | 679 | 200.4 |
| D | 8 | 48 | 177192 | 880.81 | 710 | 679 | 200.4 |
| D | 5 | 173 | 56766 | 279.88 | 710 | 679 | 200.4 |
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 |  |