Observation information
- date-obs: 2025-12-28
- time-obs: 14:18:36.261200000
- date-end: 2025-12-28
- time-end: 16:27:08.246500000
- obs_id: A14_099T01_9000006536
- exposure: 6333.94738716
- 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_55462cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55462cztM0_level2_quad_clean.evt
|
| Size (bytes) | 403,309,440 | 98,233,920 |
| Size | 384.6 MB
| 93.7 MB
|
| Events in quadrant A | 3,356,436 | 649,594 |
| Events in quadrant B | 3,522,932 | 689,706 |
| Events in quadrant C | 3,460,757 | 602,679 |
| Events in quadrant D | 4,076,504 | 572,928 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14964 | 149 |
| B | 0 | 15383 | 121 |
| C | 0 | 15398 | 127 |
| D | 0 | 16885 | 242 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6583 | 111 | 1.686161% |
| B | 6587 | 164 | 2.489753% |
| C | 6585 | 199 | 3.022020% |
| D | 6580 | 224 | 3.404255% |
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 | 7682 | 6594 | 53 | 53 | 0.69% | 0.80% |  |
| B | 7681 | 6594 | 46 | 46 | 0.60% | 0.70% |  |
| C | 7688 | 6596 | 122 | 122 | 1.59% | 1.85% |  |
| D | 7675 | 6586 | 144 | 144 | 1.88% | 2.19% |  |
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 | 341624 | 1943.98 | 708 | 687 | 175.4 |
| A | 0 | 8 | 199385 | 1132.95 | 708 | 687 | 175.4 |
| A | 3 | 14 | 29440 | 163.94 | 708 | 687 | 175.4 |
| B | 5 | 236 | 463303 | 3163.89 | 693 | 669 | 146.2 |
| B | 10 | 247 | 87064 | 590.84 | 693 | 669 | 146.2 |
| B | 0 | 171 | 54172 | 365.9 | 693 | 669 | 146.2 |
| C | 13 | 3 | 450451 | 2402.38 | 682 | 676 | 187.2 |
| C | 9 | 38 | 238591 | 1270.77 | 682 | 676 | 187.2 |
| C | 3 | 208 | 29504 | 153.98 | 682 | 676 | 187.2 |
| D | 8 | 160 | 398890 | 2081.89 | 683 | 652 | 191.3 |
| D | 6 | 239 | 242846 | 1266.13 | 683 | 652 | 191.3 |
| D | 2 | 249 | 207581 | 1081.77 | 683 | 652 | 191.3 |
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 |  |