Observation information
- date-obs: 2025-12-30
- time-obs: 04:08:17.989500000
- date-end: 2025-12-30
- time-end: 06:36:16.971700000
- obs_id: A14_099T01_9000006536
- exposure: 4576.45687163
- 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_55485cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55485cztM0_level2_quad_clean.evt
|
| Size (bytes) | 661,760,640 | 95,569,920 |
| Size | 631.1 MB
| 91.1 MB
|
| Events in quadrant A | 4,309,354 | 650,283 |
| Events in quadrant B | 3,523,373 | 720,027 |
| Events in quadrant C | 4,247,335 | 639,403 |
| Events in quadrant D | 11,856,901 | 382,164 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 2 |
| D | 0 | 148 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18098 | 24 |
| B | 0 | 15759 | 21 |
| C | 0 | 17733 | 74 |
| D | 0 | 40420 | 162 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7213 | 302 | 4.186885% |
| B | 7215 | 86 | 1.191961% |
| C | 7202 | 56 | 0.777562% |
| D | 7197 | 3012 | 41.850771% |
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 | 8878 | 7224 | 275 | 275 | 3.10% | 3.81% |  |
| B | 8879 | 7224 | 28 | 28 | 0.32% | 0.39% |  |
| C | 8880 | 7221 | 44 | 44 | 0.50% | 0.61% |  |
| D | 8878 | 7223 | 2754 | 2754 | 31.02% | 38.13% |  |
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 | 1011848 | 5394.22 | 753 | 732 | 187.4 |
| A | 3 | 78 | 302341 | 1609.06 | 753 | 732 | 187.4 |
| A | 4 | 3 | 28180 | 146.43 | 753 | 732 | 187.4 |
| B | 4 | 206 | 380665 | 2340.32 | 755 | 727 | 162.3 |
| B | 10 | 247 | 39352 | 237.92 | 755 | 727 | 162.3 |
| B | 5 | 236 | 24328 | 145.38 | 755 | 727 | 162.3 |
| C | 9 | 38 | 920449 | 4544.11 | 737 | 727 | 202.4 |
| C | 15 | 147 | 180886 | 890.12 | 737 | 727 | 202.4 |
| C | 13 | 3 | 97792 | 479.57 | 737 | 727 | 202.4 |
| D | 7 | 70 | 6313420 | 36409.98 | 613 | 586 | 173.4 |
| D | 11 | 129 | 1112167 | 6411.17 | 613 | 586 | 173.4 |
| D | 10 | 181 | 1051133 | 6059.15 | 613 | 586 | 173.4 |
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 |  |