Observation information
- date-obs: 2025-12-29
- time-obs: 21:23:58.407000000
- date-end: 2025-12-29
- time-end: 23:40:19.025000000
- obs_id: A14_099T01_9000006536
- exposure: 7354.62400723
- 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_55481cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55481cztM0_level2_quad_clean.evt
|
| Size (bytes) | 551,177,280 | 112,271,040 |
| Size | 525.6 MB
| 107.1 MB
|
| Events in quadrant A | 4,022,701 | 745,154 |
| Events in quadrant B | 3,704,535 | 803,222 |
| Events in quadrant C | 5,044,682 | 661,163 |
| Events in quadrant D | 7,006,435 | 631,216 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 164 | 4 |
| B | 0 | 164 | 4 |
| C | 0 | 164 | 2 |
| D | 0 | 164 | 4 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18405 | 334 |
| B | 0 | 17325 | 290 |
| C | 0 | 21625 | 449 |
| D | 0 | 27377 | 735 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8044 | 139 | 1.727996% |
| B | 8043 | 36 | 0.447594% |
| C | 8040 | 658 | 8.184080% |
| D | 8021 | 747 | 9.313053% |
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 | 8148 | 8081 | 89 | 89 | 1.09% | 1.10% |  |
| B | 8143 | 8076 | 12 | 12 | 0.15% | 0.15% |  |
| C | 8143 | 8074 | 519 | 519 | 6.37% | 6.43% |  |
| D | 8082 | 8051 | 689 | 689 | 8.53% | 8.56% |  |
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 | 8 | 63 | 154301 | 730.88 | 845 | 824 | 210.0 |
| A | 0 | 8 | 149193 | 706.56 | 845 | 824 | 210.0 |
| A | 3 | 45 | 130330 | 616.73 | 845 | 824 | 210.0 |
| B | 5 | 236 | 93132 | 516.85 | 841 | 810 | 178.6 |
| B | 10 | 247 | 69463 | 384.35 | 841 | 810 | 178.6 |
| B | 7 | 252 | 66328 | 366.79 | 841 | 810 | 178.6 |
| C | 13 | 3 | 1642296 | 7489.01 | 801 | 792 | 219.2 |
| C | 12 | 252 | 101993 | 461.71 | 801 | 792 | 219.2 |
| C | 1 | 16 | 42925 | 192.22 | 801 | 792 | 219.2 |
| D | 11 | 129 | 1887493 | 8378.11 | 795 | 757 | 225.2 |
| D | 6 | 239 | 522853 | 2318.38 | 795 | 757 | 225.2 |
| D | 2 | 249 | 319626 | 1415.95 | 795 | 757 | 225.2 |
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 |  |