Observation information
- date-obs: 2025-12-26
- time-obs: 22:21:53.550300000
- date-end: 2025-12-27
- time-end: 00:38:11.525800000
- obs_id: A14_099T01_9000006536
- exposure: 7824.0621326
- 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_55437cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55437cztM0_level2_quad_clean.evt
|
| Size (bytes) | 496,252,800 | 102,214,080 |
| Size | 473.3 MB
| 97.5 MB
|
| Events in quadrant A | 4,263,056 | 660,798 |
| Events in quadrant B | 3,674,366 | 698,331 |
| Events in quadrant C | 3,564,345 | 632,260 |
| Events in quadrant D | 6,253,755 | 553,686 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18692 | 0 |
| B | 0 | 16761 | 0 |
| C | 0 | 16498 | 0 |
| D | 0 | 24175 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7903 | 262 | 3.315197% |
| B | 7904 | 33 | 0.417510% |
| C | 7904 | 21 | 0.265688% |
| D | 7904 | 387 | 4.896255% |
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 | 8178 | 8178 | 197 | 197 | 2.41% | 2.41% |  |
| B | 8179 | 8179 | 18 | 18 | 0.22% | 0.22% |  |
| C | 8179 | 8179 | 12 | 12 | 0.15% | 0.15% |  |
| D | 8179 | 8179 | 308 | 308 | 3.77% | 3.77% |  |
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 | 4 | 159 | 932484 | 4576.22 | 810 | 787 | 203.6 |
| A | 0 | 8 | 77954 | 379.02 | 810 | 787 | 203.6 |
| A | 4 | 3 | 33292 | 159.65 | 810 | 787 | 203.6 |
| B | 7 | 252 | 145441 | 844.03 | 812 | 783 | 171.4 |
| B | 10 | 247 | 114369 | 662.74 | 812 | 783 | 171.4 |
| B | 0 | 171 | 50547 | 290.36 | 812 | 783 | 171.4 |
| C | 14 | 254 | 118585 | 528.36 | 808 | 800 | 222.9 |
| C | 13 | 3 | 100939 | 449.21 | 808 | 800 | 222.9 |
| C | 9 | 38 | 82306 | 365.62 | 808 | 800 | 222.9 |
| D | 11 | 129 | 1888142 | 8514.02 | 783 | 747 | 221.7 |
| D | 8 | 48 | 410964 | 1850.49 | 783 | 747 | 221.7 |
| D | 14 | 50 | 195664 | 879.27 | 783 | 747 | 221.7 |
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 |  |