Observation information
- date-obs: 2026-01-02
- time-obs: 17:26:15.366000000
- date-end: 2026-01-02
- time-end: 19:20:56.353300000
- obs_id: A14_099T01_9000006536
- exposure: 6380.98850173
- 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_55539cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55539cztM0_level2_quad_clean.evt
|
| Size (bytes) | 457,799,040 | 97,381,440 |
| Size | 436.6 MB
| 92.9 MB
|
| Events in quadrant A | 3,560,468 | 638,878 |
| Events in quadrant B | 3,229,225 | 684,528 |
| Events in quadrant C | 4,152,645 | 601,201 |
| Events in quadrant D | 5,469,106 | 544,703 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15632 | 0 |
| B | 0 | 14883 | 0 |
| C | 0 | 17176 | 0 |
| D | 0 | 21129 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6881 | 108 | 1.569539% |
| B | 6881 | 54 | 0.784770% |
| C | 6881 | 144 | 2.092719% |
| D | 6882 | 554 | 8.049985% |
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 | 6881 | 6881 | 82 | 82 | 1.19% | 1.19% |  |
| B | 6881 | 6881 | 35 | 35 | 0.51% | 0.51% |  |
| C | 6881 | 6881 | 116 | 116 | 1.69% | 1.69% |  |
| D | 6882 | 6882 | 497 | 497 | 7.22% | 7.22% |  |
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 | 0 | 8 | 353043 | 1951.94 | 720 | 700 | 180.5 |
| A | 4 | 159 | 195474 | 1079.03 | 720 | 700 | 180.5 |
| A | 4 | 3 | 67053 | 367.59 | 720 | 700 | 180.5 |
| B | 0 | 171 | 88551 | 572.38 | 711 | 683 | 153.5 |
| B | 10 | 247 | 86036 | 555.99 | 711 | 683 | 153.5 |
| B | 5 | 236 | 70243 | 453.12 | 711 | 683 | 153.5 |
| C | 9 | 38 | 951620 | 4982.83 | 696 | 687 | 190.8 |
| C | 12 | 250 | 138502 | 722.14 | 696 | 687 | 190.8 |
| C | 13 | 3 | 91284 | 474.72 | 696 | 687 | 190.8 |
| D | 11 | 129 | 1780301 | 9132.76 | 684 | 653 | 194.9 |
| D | 6 | 239 | 493648 | 2529.94 | 684 | 653 | 194.9 |
| D | 2 | 31 | 94953 | 483.93 | 684 | 653 | 194.9 |
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 |  |