Observation information
- date-obs: 2025-12-28
- time-obs: 10:42:56.287000000
- date-end: 2025-12-28
- time-end: 12:57:34.270500000
- obs_id: A14_099T01_9000006536
- exposure: 6020.42200625
- 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_55460cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55460cztM0_level2_quad_clean.evt
|
| Size (bytes) | 445,916,160 | 96,520,320 |
| Size | 425.3 MB
| 92.0 MB
|
| Events in quadrant A | 4,155,766 | 630,092 |
| Events in quadrant B | 3,494,080 | 680,448 |
| Events in quadrant C | 3,720,755 | 602,446 |
| Events in quadrant D | 4,632,231 | 558,692 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16887 | 2 |
| B | 0 | 15070 | 2 |
| C | 0 | 15828 | 2 |
| D | 0 | 18195 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6470 | 406 | 6.275116% |
| B | 6470 | 321 | 4.961360% |
| C | 6470 | 282 | 4.358578% |
| D | 6470 | 483 | 7.465224% |
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 | 7605 | 6470 | 234 | 234 | 3.08% | 3.62% |  |
| B | 7605 | 6470 | 188 | 188 | 2.47% | 2.91% |  |
| C | 7605 | 6470 | 170 | 170 | 2.24% | 2.63% |  |
| D | 7605 | 6470 | 362 | 362 | 4.76% | 5.60% |  |
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 | 3 | 78 | 1334390 | 7570.11 | 712 | 694 | 176.2 |
| A | 13 | 254 | 13848 | 74.66 | 712 | 694 | 176.2 |
| A | 4 | 3 | 13773 | 74.24 | 712 | 694 | 176.2 |
| B | 5 | 236 | 422088 | 2858.82 | 696 | 669 | 147.4 |
| B | 10 | 247 | 156285 | 1055.67 | 696 | 669 | 147.4 |
| B | 0 | 171 | 122538 | 826.73 | 696 | 669 | 147.4 |
| C | 13 | 3 | 731562 | 3901.02 | 686 | 679 | 187.4 |
| C | 1 | 16 | 128411 | 681.76 | 686 | 679 | 187.4 |
| C | 12 | 252 | 104434 | 553.78 | 686 | 679 | 187.4 |
| D | 8 | 160 | 734123 | 3839.32 | 681 | 650 | 191.0 |
| D | 9 | 65 | 357467 | 1867.74 | 681 | 650 | 191.0 |
| D | 2 | 31 | 209844 | 1095.01 | 681 | 650 | 191.0 |
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 |  |