Observation information
- date-obs: 2026-01-02
- time-obs: 01:32:46.485100000
- date-end: 2026-01-02
- time-end: 03:59:30.465300000
- obs_id: A14_099T01_9000006536
- exposure: 6291.31354296
- 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_55528cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55528cztM0_level2_quad_clean.evt
|
| Size (bytes) | 518,673,600 | 101,957,760 |
| Size | 494.6 MB
| 97.2 MB
|
| Events in quadrant A | 3,655,195 | 675,599 |
| Events in quadrant B | 3,327,345 | 726,927 |
| Events in quadrant C | 4,447,478 | 639,674 |
| Events in quadrant D | 7,190,892 | 526,843 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16525 | 2 |
| B | 0 | 15554 | 2 |
| C | 0 | 18735 | 2 |
| D | 0 | 26885 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7444 | 118 | 1.585169% |
| B | 7445 | 83 | 1.114842% |
| C | 7445 | 255 | 3.425118% |
| D | 7445 | 1226 | 16.467428% |
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 | 8804 | 7446 | 73 | 73 | 0.83% | 0.98% |  |
| B | 8805 | 7447 | 15 | 15 | 0.17% | 0.20% |  |
| C | 8805 | 7447 | 196 | 196 | 2.23% | 2.63% |  |
| D | 8805 | 7447 | 1018 | 1018 | 11.56% | 13.67% |  |
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 | 0 | 8 | 431744 | 2241.92 | 774 | 753 | 192.2 |
| A | 4 | 205 | 85744 | 442.1 | 774 | 753 | 192.2 |
| A | 4 | 159 | 50680 | 259.71 | 774 | 753 | 192.2 |
| B | 0 | 171 | 68995 | 413.26 | 771 | 743 | 165.2 |
| B | 7 | 252 | 31698 | 187.43 | 771 | 743 | 165.2 |
| B | 5 | 236 | 31223 | 184.55 | 771 | 743 | 165.2 |
| C | 9 | 38 | 594262 | 2884.86 | 752 | 746 | 205.7 |
| C | 15 | 147 | 583327 | 2831.71 | 752 | 746 | 205.7 |
| C | 13 | 3 | 107223 | 517.55 | 752 | 746 | 205.7 |
| D | 11 | 129 | 3415128 | 17368.5 | 692 | 659 | 196.6 |
| D | 8 | 160 | 258462 | 1311.38 | 692 | 659 | 196.6 |
| D | 8 | 245 | 222100 | 1126.41 | 692 | 659 | 196.6 |
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 |  |