Observation information
- date-obs: 2025-12-25
- time-obs: 11:45:04.788600000
- date-end: 2025-12-25
- time-end: 13:54:06.773900000
- obs_id: A14_099T01_9000006536
- exposure: 3907.27506828
- 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_55416cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55416cztM0_level2_quad_clean.evt
|
| Size (bytes) | 549,204,480 | 93,502,080 |
| Size | 523.8 MB
| 89.2 MB
|
| Events in quadrant A | 2,952,407 | 672,213 |
| Events in quadrant B | 3,056,454 | 714,949 |
| Events in quadrant C | 3,088,083 | 629,916 |
| Events in quadrant D | 10,719,492 | 354,408 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13610 | 1 |
| B | 0 | 13891 | 1 |
| C | 0 | 14196 | 1 |
| D | 0 | 36390 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6597 | 66 | 1.000455% |
| B | 6597 | 83 | 1.258148% |
| C | 6598 | 61 | 0.924523% |
| D | 6597 | 2970 | 45.020464% |
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 | 7742 | 6598 | 5 | 5 | 0.06% | 0.08% |  |
| B | 7742 | 6598 | 8 | 8 | 0.10% | 0.12% |  |
| C | 7743 | 6599 | 18 | 18 | 0.23% | 0.27% |  |
| D | 7742 | 6597 | 2413 | 2413 | 31.17% | 36.58% |  |
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 | 15 | 32 | 29180 | 158.59 | 727 | 708 | 179.5 |
| A | 4 | 3 | 21772 | 117.33 | 727 | 708 | 179.5 |
| A | 12 | 3 | 21376 | 115.12 | 727 | 708 | 179.5 |
| B | 5 | 236 | 45148 | 293.64 | 711 | 686 | 151.4 |
| B | 10 | 247 | 36508 | 236.58 | 711 | 686 | 151.4 |
| B | 0 | 183 | 34193 | 221.29 | 711 | 686 | 151.4 |
| C | 12 | 252 | 167560 | 871.62 | 699 | 692 | 191.4 |
| C | 13 | 3 | 137999 | 717.21 | 699 | 692 | 191.4 |
| C | 1 | 241 | 14080 | 69.93 | 699 | 692 | 191.4 |
| D | 11 | 129 | 7930843 | 53430.32 | 522 | 499 | 148.4 |
| D | 2 | 249 | 148946 | 1000.15 | 522 | 499 | 148.4 |
| D | 2 | 31 | 126069 | 846.02 | 522 | 499 | 148.4 |
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 |  |