Observation information
- date-obs: 2025-12-26
- time-obs: 01:32:29.697700000
- date-end: 2025-12-26
- time-end: 04:17:50.678400000
- obs_id: A14_099T01_9000006536
- exposure: 4950.88658834
- 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_55425cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55425cztM0_level2_quad_clean.evt
|
| Size (bytes) | 836,449,920 | 121,798,080 |
| Size | 797.7 MB
| 116.2 MB
|
| Events in quadrant A | 4,125,247 | 867,621 |
| Events in quadrant B | 4,484,790 | 921,444 |
| Events in quadrant C | 4,357,552 | 830,480 |
| Events in quadrant D | 17,248,647 | 402,066 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 194 | 0 |
| B | 0 | 194 | 0 |
| C | 0 | 194 | 0 |
| D | 0 | 194 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19957 | 1 |
| B | 0 | 20721 | 1 |
| C | 0 | 20738 | 1 |
| D | 0 | 57937 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 9611 | 49 | 0.509832% |
| B | 9611 | 165 | 1.716783% |
| C | 9612 | 96 | 0.998752% |
| D | 9611 | 4991 | 51.930080% |
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 | 9921 | 9613 | 14 | 14 | 0.14% | 0.15% |  |
| B | 9921 | 9613 | 52 | 52 | 0.52% | 0.54% |  |
| C | 9922 | 9614 | 58 | 58 | 0.58% | 0.60% |  |
| D | 9920 | 9611 | 4559 | 4559 | 45.96% | 47.44% |  |
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 | 4 | 159 | 133086 | 544.28 | 984 | 959 | 242.8 |
| A | 4 | 3 | 61190 | 248.11 | 984 | 959 | 242.8 |
| A | 0 | 8 | 39825 | 160.1 | 984 | 959 | 242.8 |
| B | 12 | 32 | 191273 | 919.67 | 971 | 933 | 207.0 |
| B | 7 | 252 | 134816 | 646.88 | 971 | 933 | 207.0 |
| B | 10 | 247 | 79192 | 378.12 | 971 | 933 | 207.0 |
| C | 15 | 157 | 171493 | 652.14 | 956 | 948 | 261.5 |
| C | 10 | 19 | 166308 | 632.32 | 956 | 948 | 261.5 |
| C | 12 | 252 | 114887 | 435.69 | 956 | 948 | 261.5 |
| D | 11 | 129 | 13709208 | 72422.99 | 667 | 636 | 189.3 |
| D | 2 | 62 | 235698 | 1241.84 | 667 | 636 | 189.3 |
| D | 6 | 46 | 200396 | 1055.34 | 667 | 636 | 189.3 |
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 |  |