Observation information
- date-obs: 2025-12-28
- time-obs: 22:47:38.202900000
- date-end: 2025-12-29
- time-end: 04:36:08.159900000
- obs_id: A14_099T01_9000006536
- exposure: 18699.8429205
- 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_55469cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55469cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,263,271,680 | 276,949,440 |
| Size | 1.2 GB
| 264.1 MB
|
| Events in quadrant A | 11,163,077 | 1,796,457 |
| Events in quadrant B | 10,472,216 | 1,936,660 |
| Events in quadrant C | 10,278,881 | 1,725,841 |
| Events in quadrant D | 13,309,146 | 1,557,290 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 402 | 0 |
| B | 0 | 402 | 0 |
| C | 0 | 402 | 0 |
| D | 0 | 402 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 47484 | 0 |
| B | 0 | 45566 | 0 |
| C | 0 | 45730 | 0 |
| D | 0 | 54197 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19869 | 546 | 2.747999% |
| B | 19866 | 463 | 2.330615% |
| C | 19870 | 504 | 2.536487% |
| D | 19870 | 1196 | 6.019124% |
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 | 20909 | 19871 | 466 | 466 | 2.23% | 2.35% |  |
| B | 20909 | 19868 | 157 | 157 | 0.75% | 0.79% |  |
| C | 20910 | 19872 | 399 | 399 | 1.91% | 2.01% |  |
| D | 20910 | 19871 | 1067 | 1067 | 5.10% | 5.37% |  |
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 | 1641925 | 3191.15 | 2078 | 2024 | 513.9 |
| A | 0 | 8 | 460187 | 891.56 | 2078 | 2024 | 513.9 |
| A | 3 | 14 | 298367 | 576.67 | 2078 | 2024 | 513.9 |
| B | 5 | 172 | 1135912 | 2580.4 | 2071 | 1989 | 439.4 |
| B | 0 | 171 | 362417 | 820.2 | 2071 | 1989 | 439.4 |
| B | 10 | 247 | 293855 | 664.18 | 2071 | 1989 | 439.4 |
| C | 13 | 3 | 765121 | 1377.16 | 2034 | 2012 | 554.1 |
| C | 12 | 252 | 550926 | 990.61 | 2034 | 2012 | 554.1 |
| C | 9 | 38 | 508768 | 914.53 | 2034 | 2012 | 554.1 |
| D | 15 | 58 | 1097719 | 1938.85 | 2002 | 1914 | 565.2 |
| D | 11 | 129 | 830328 | 1465.75 | 2002 | 1914 | 565.2 |
| D | 8 | 160 | 818421 | 1444.68 | 2002 | 1914 | 565.2 |
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 |  |