Observation information
- date-obs: 2025-12-25
- time-obs: 06:33:28.827000000
- date-end: 2025-12-25
- time-end: 08:41:42.810600000
- obs_id: A14_099T01_9000006536
- exposure: 2963.2059468
- 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_55412cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55412cztM0_level2_quad_clean.evt
|
| Size (bytes) | 608,267,520 | 86,313,600 |
| Size | 580.1 MB
| 82.3 MB
|
| Events in quadrant A | 3,291,042 | 621,520 |
| Events in quadrant B | 3,210,896 | 673,326 |
| Events in quadrant C | 3,376,943 | 589,002 |
| Events in quadrant D | 12,103,014 | 251,861 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15016 | 1 |
| B | 0 | 14621 | 1 |
| C | 0 | 15505 | 1 |
| D | 0 | 40685 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6859 | 158 | 2.303543% |
| B | 6860 | 112 | 1.632653% |
| C | 6860 | 215 | 3.134111% |
| D | 6859 | 4016 | 58.550809% |
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 | 7694 | 6860 | 75 | 75 | 0.97% | 1.09% |  |
| B | 7695 | 6861 | 27 | 27 | 0.35% | 0.39% |  |
| C | 7695 | 6861 | 139 | 139 | 1.81% | 2.03% |  |
| D | 7694 | 6859 | 3551 | 3551 | 46.15% | 51.77% |  |
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 | 357035 | 2019.41 | 712 | 694 | 176.5 |
| A | 4 | 159 | 68765 | 385.76 | 712 | 694 | 176.5 |
| A | 12 | 3 | 41599 | 231.81 | 712 | 694 | 176.5 |
| B | 5 | 185 | 181852 | 1192.15 | 706 | 680 | 152.0 |
| B | 5 | 236 | 100012 | 653.63 | 706 | 680 | 152.0 |
| B | 2 | 30 | 25717 | 164.75 | 706 | 680 | 152.0 |
| C | 9 | 38 | 473014 | 2535.0 | 684 | 677 | 186.3 |
| C | 13 | 3 | 67578 | 359.05 | 684 | 677 | 186.3 |
| C | 12 | 252 | 46475 | 245.8 | 684 | 677 | 186.3 |
| D | 11 | 129 | 9839530 | 79367.98 | 437 | 417 | 124.0 |
| D | 11 | 176 | 200224 | 1611.76 | 437 | 417 | 124.0 |
| D | 2 | 249 | 148634 | 1195.6 | 437 | 417 | 124.0 |
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 |  |