Observation information
- date-obs: 2025-12-28
- time-obs: 00:22:02.365500000
- date-end: 2025-12-28
- time-end: 06:04:32.322900000
- obs_id: A14_099T01_9000006536
- exposure: 5503.93167853
- 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_55455cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55455cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,998,406,080 | 228,504,960 |
| Size | 1.9 GB
| 217.9 MB
|
| Events in quadrant A | 8,980,815 | 1,725,942 |
| Events in quadrant B | 11,084,886 | 1,781,142 |
| Events in quadrant C | 9,650,222 | 1,650,926 |
| Events in quadrant D | 42,781,651 | 445,125 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 388 | 0 |
| B | 0 | 388 | 0 |
| C | 0 | 388 | 0 |
| D | 0 | 388 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 41315 | 5 |
| B | 0 | 47102 | 5 |
| C | 0 | 43310 | 5 |
| D | 0 | 140016 | 18 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19086 | 269 | 1.409410% |
| B | 19086 | 1021 | 5.349471% |
| C | 19086 | 414 | 2.169129% |
| D | 19084 | 14020 | 73.464682% |
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 | 20551 | 19092 | 121 | 121 | 0.59% | 0.63% |  |
| B | 20551 | 19091 | 660 | 660 | 3.21% | 3.46% |  |
| C | 20551 | 19092 | 260 | 260 | 1.27% | 1.36% |  |
| D | 20550 | 19083 | 13749 | 13749 | 66.91% | 72.05% |  |
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 | 491726 | 988.82 | 1998 | 1945 | 495.3 |
| A | 0 | 8 | 369629 | 742.32 | 1998 | 1945 | 495.3 |
| A | 3 | 78 | 192334 | 384.38 | 1998 | 1945 | 495.3 |
| B | 5 | 236 | 1991376 | 4818.86 | 1945 | 1871 | 412.9 |
| B | 0 | 171 | 945864 | 2286.48 | 1945 | 1871 | 412.9 |
| B | 10 | 247 | 140404 | 335.55 | 1945 | 1871 | 412.9 |
| C | 13 | 3 | 1477114 | 2774.19 | 1944 | 1922 | 531.8 |
| C | 1 | 16 | 176130 | 327.61 | 1944 | 1922 | 531.8 |
| C | 9 | 38 | 123138 | 227.95 | 1944 | 1922 | 531.8 |
| D | 2 | 62 | 36072781 | 118506.77 | 1059 | 1011 | 304.4 |
| D | 11 | 129 | 861230 | 2826.08 | 1059 | 1011 | 304.4 |
| D | 6 | 239 | 399561 | 1309.36 | 1059 | 1011 | 304.4 |
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 |  |