Observation information
- date-obs: 2025-12-29
- time-obs: 11:08:36.109700000
- date-end: 2025-12-29
- time-end: 13:15:08.094900000
- obs_id: A14_099T01_9000006536
- exposure: 5715.03934211
- 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_55475cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55475cztM0_level2_quad_clean.evt
|
| Size (bytes) | 497,312,640 | 95,987,520 |
| Size | 474.3 MB
| 91.5 MB
|
| Events in quadrant A | 4,034,826 | 639,499 |
| Events in quadrant B | 3,348,118 | 694,918 |
| Events in quadrant C | 4,277,018 | 594,545 |
| Events in quadrant D | 6,249,943 | 529,627 |
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 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16250 | 0 |
| B | 0 | 14433 | 0 |
| C | 0 | 17296 | 0 |
| D | 0 | 23026 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6422 | 286 | 4.453441% |
| B | 6422 | 139 | 2.164435% |
| C | 6423 | 323 | 5.028803% |
| D | 6423 | 847 | 13.186984% |
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 | 7592 | 6422 | 205 | 205 | 2.70% | 3.19% |  |
| B | 7592 | 6422 | 34 | 34 | 0.45% | 0.53% |  |
| C | 7593 | 6423 | 309 | 309 | 4.07% | 4.81% |  |
| D | 7593 | 6423 | 805 | 805 | 10.60% | 12.53% |  |
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 | 855626 | 4879.34 | 706 | 689 | 175.2 |
| A | 0 | 8 | 203116 | 1155.3 | 706 | 689 | 175.2 |
| A | 3 | 14 | 106803 | 605.62 | 706 | 689 | 175.2 |
| B | 5 | 172 | 341763 | 2322.85 | 693 | 668 | 146.8 |
| B | 0 | 171 | 92538 | 625.63 | 693 | 668 | 146.8 |
| B | 10 | 247 | 71396 | 481.66 | 693 | 668 | 146.8 |
| C | 9 | 38 | 1300403 | 7014.97 | 678 | 670 | 185.3 |
| C | 13 | 3 | 73734 | 394.34 | 678 | 670 | 185.3 |
| C | 12 | 252 | 71835 | 384.09 | 678 | 670 | 185.3 |
| D | 11 | 129 | 1933932 | 10334.25 | 658 | 629 | 187.1 |
| D | 2 | 153 | 412414 | 2201.15 | 658 | 629 | 187.1 |
| D | 8 | 160 | 374885 | 2000.54 | 658 | 629 | 187.1 |
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 |  |