Observation information
- date-obs: 2025-12-28
- time-obs: 08:56:16.300500000
- date-end: 2025-12-28
- time-end: 11:14:18.283000000
- obs_id: A14_099T01_9000006536
- exposure: 6259.87841332
- 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_55459cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55459cztM0_level2_quad_clean.evt
|
| Size (bytes) | 405,659,520 | 97,928,640 |
| Size | 386.9 MB
| 93.4 MB
|
| Events in quadrant A | 3,335,085 | 646,052 |
| Events in quadrant B | 3,054,771 | 695,067 |
| Events in quadrant C | 3,782,881 | 599,196 |
| Events in quadrant D | 4,336,026 | 570,539 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 1 |
| 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 | 14562 | 2 |
| B | 0 | 13847 | 2 |
| C | 0 | 16043 | 2 |
| D | 0 | 17436 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6519 | 120 | 1.840773% |
| B | 6519 | 121 | 1.856113% |
| C | 6519 | 234 | 3.589508% |
| D | 6519 | 253 | 3.880963% |
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 | 7629 | 6519 | 25 | 25 | 0.33% | 0.38% |  |
| B | 7629 | 6519 | 39 | 39 | 0.51% | 0.60% |  |
| C | 7629 | 6519 | 174 | 174 | 2.28% | 2.67% |  |
| D | 7629 | 6520 | 234 | 234 | 3.07% | 3.59% |  |
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 | 486174 | 2758.32 | 716 | 698 | 176.0 |
| A | 0 | 8 | 30717 | 170.56 | 716 | 698 | 176.0 |
| A | 13 | 254 | 13525 | 72.88 | 716 | 698 | 176.0 |
| B | 5 | 236 | 138254 | 914.15 | 702 | 678 | 150.5 |
| B | 0 | 171 | 44602 | 291.86 | 702 | 678 | 150.5 |
| B | 0 | 182 | 27317 | 177.01 | 702 | 678 | 150.5 |
| C | 13 | 3 | 834212 | 4472.72 | 679 | 671 | 186.4 |
| C | 1 | 16 | 191699 | 1025.04 | 679 | 671 | 186.4 |
| C | 1 | 246 | 27157 | 142.12 | 679 | 671 | 186.4 |
| D | 8 | 160 | 947848 | 4883.29 | 685 | 654 | 194.0 |
| D | 2 | 31 | 236042 | 1213.55 | 685 | 654 | 194.0 |
| D | 2 | 249 | 115791 | 593.59 | 685 | 654 | 194.0 |
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 |  |