Observation information
- date-obs: 2025-12-24
- time-obs: 09:55:03.971500000
- date-end: 2025-12-24
- time-end: 11:51:10.955800000
- obs_id: A14_099T01_9000006536
- exposure: 4688.07890004
- 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_55400cztM0_level2.fits
| modeM0/AS1A14_099T01_9000006536_55400cztM0_level2_quad_clean.evt
|
| Size (bytes) | 443,905,920 | 85,582,080 |
| Size | 423.3 MB
| 81.6 MB
|
| Events in quadrant A | 2,885,315 | 583,090 |
| Events in quadrant B | 2,906,328 | 622,035 |
| Events in quadrant C | 2,834,314 | 544,723 |
| Events in quadrant D | 7,343,939 | 426,828 |
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 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13057 | 1 |
| B | 0 | 12531 | 1 |
| C | 0 | 12996 | 1 |
| D | 0 | 25868 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5937 | 124 | 2.088597% |
| B | 5937 | 86 | 1.448543% |
| C | 5938 | 112 | 1.886157% |
| D | 5936 | 1426 | 24.022911% |
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 | 6967 | 5938 | 33 | 33 | 0.47% | 0.56% |  |
| B | 6967 | 5938 | 6 | 6 | 0.09% | 0.10% |  |
| C | 6968 | 5939 | 36 | 36 | 0.52% | 0.61% |  |
| D | 6968 | 5938 | 1471 | 1471 | 21.11% | 24.77% |  |
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 | 4 | 159 | 217372 | 1370.03 | 634 | 620 | 158.2 |
| A | 3 | 62 | 76381 | 478.87 | 634 | 620 | 158.2 |
| A | 4 | 3 | 44111 | 274.89 | 634 | 620 | 158.2 |
| B | 5 | 172 | 265240 | 1966.42 | 622 | 598 | 134.6 |
| B | 5 | 236 | 116967 | 864.68 | 622 | 598 | 134.6 |
| B | 10 | 247 | 37109 | 271.29 | 622 | 598 | 134.6 |
| C | 12 | 249 | 151501 | 901.05 | 608 | 602 | 167.5 |
| C | 13 | 3 | 149077 | 886.58 | 608 | 602 | 167.5 |
| C | 12 | 2 | 95249 | 565.16 | 608 | 602 | 167.5 |
| D | 11 | 129 | 4554489 | 27769.85 | 569 | 545 | 164.0 |
| D | 8 | 160 | 209247 | 1272.66 | 569 | 545 | 164.0 |
| D | 11 | 176 | 86617 | 524.87 | 569 | 545 | 164.0 |
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 |  |