Observation information
- date-obs: 2025-12-25
- time-obs: 21:55:47.721200000
- date-end: 2025-12-26
- time-end: 00:21:56.684500000
- obs_id: A14_099T01_9000006536
- exposure: 3523.56981695
- 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_55422cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55422cztM0_level2_quad_clean.evt
|
| Size (bytes) | 854,179,200 | 98,418,240 |
| Size | 814.6 MB
| 93.9 MB
|
| Events in quadrant A | 4,423,916 | 703,924 |
| Events in quadrant B | 4,816,945 | 759,965 |
| Events in quadrant C | 4,396,273 | 672,080 |
| Events in quadrant D | 17,321,866 | 253,169 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 170 | 0 |
| B | 0 | 170 | 0 |
| C | 0 | 170 | 0 |
| D | 0 | 170 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19680 | 1 |
| B | 0 | 20408 | 0 |
| C | 0 | 19682 | 0 |
| D | 0 | 57252 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8500 | 216 | 2.541176% |
| B | 8501 | 202 | 2.376191% |
| C | 8501 | 155 | 1.823315% |
| D | 8501 | 5549 | 65.274674% |
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 | 8768 | 8768 | 152 | 152 | 1.73% | 1.73% |  |
| B | 8769 | 8769 | 127 | 127 | 1.45% | 1.45% |  |
| C | 8769 | 8769 | 99 | 99 | 1.13% | 1.13% |  |
| D | 8769 | 8709 | 4886 | 4886 | 55.72% | 56.10% |  |
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 | 554724 | 2513.69 | 886 | 865 | 220.3 |
| A | 4 | 159 | 229181 | 1036.21 | 886 | 865 | 220.3 |
| A | 7 | 14 | 47721 | 212.66 | 886 | 865 | 220.3 |
| B | 12 | 32 | 510114 | 2740.8 | 880 | 850 | 185.8 |
| B | 7 | 252 | 346889 | 1862.34 | 880 | 850 | 185.8 |
| B | 5 | 236 | 191840 | 1027.89 | 880 | 850 | 185.8 |
| C | 13 | 3 | 628824 | 2616.81 | 874 | 866 | 240.0 |
| C | 15 | 148 | 113496 | 469.35 | 874 | 866 | 240.0 |
| C | 15 | 178 | 55694 | 228.48 | 874 | 866 | 240.0 |
| D | 11 | 129 | 13110654 | 79695.62 | 572 | 546 | 164.5 |
| D | 8 | 48 | 396607 | 2407.63 | 572 | 546 | 164.5 |
| D | 2 | 249 | 318199 | 1931.0 | 572 | 546 | 164.5 |
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 |  |