Observation information
- date-obs: 2023-04-16
- time-obs: 20:50:12.877000000
- date-end: 2023-04-16
- time-end: 23:03:50.871900000
- obs_id: A12_104T02_9000005572
- exposure: 4716.07031465
- sourceid: Oj 287
- observer: chandrasunil
- ra_pnt: 133.7036
- dec_pnt: 20.10851
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A12_104T02_9000005572_40823cztM0_level2.fits
| modeM0/AS1A12_104T02_9000005572_40823cztM0_level2_quad_clean.evt
|
| Size (bytes) | 296,409,600 | 86,803,200 |
| Size | 282.7 MB
| 82.8 MB
|
| Events in quadrant A | 2,725,314 | 589,336 |
| Events in quadrant B | 2,242,707 | 611,523 |
| Events in quadrant C | 2,480,275 | 571,636 |
| Events in quadrant D | 3,143,087 | 513,513 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31 | 0 |
| B | 0 | 31 | 0 |
| C | 0 | 31 | 0 |
| D | 0 | 32 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11019 | 3 |
| B | 0 | 9849 | 2 |
| C | 0 | 10256 | 2 |
| D | 0 | 12806 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100 | 0 |
| B | 0 | 100 | 0 |
| C | 0 | 100 | 0 |
| D | 0 | 100 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4882 | 14 | 0.286768% |
| B | 4882 | 5 | 0.102417% |
| C | 4882 | 28 | 0.573535% |
| D | 4882 | 150 | 3.072511% |
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 | 7005 | 4883 | 7 | 7 | 0.10% | 0.14% |  |
| B | 7005 | 4883 | 2 | 2 | 0.03% | 0.04% |  |
| C | 7005 | 4883 | 34 | 34 | 0.49% | 0.70% |  |
| D | 7005 | 4883 | 149 | 149 | 2.13% | 3.05% |  |
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 | 10 | 83 | 458933 | 4018.12 | 560 | 551 | 114.1 |
| A | 6 | 10 | 48801 | 422.95 | 560 | 551 | 114.1 |
| A | 12 | 189 | 26865 | 230.67 | 560 | 551 | 114.1 |
| B | 0 | 190 | 21415 | 192.06 | 564 | 550 | 108.6 |
| B | 12 | 111 | 13669 | 120.76 | 564 | 550 | 108.6 |
| B | 11 | 111 | 12325 | 108.39 | 564 | 550 | 108.6 |
| C | 15 | 214 | 209207 | 1638.86 | 545 | 549 | 127.3 |
| C | 0 | 10 | 128911 | 1008.19 | 545 | 549 | 127.3 |
| C | 3 | 233 | 12132 | 90.98 | 545 | 549 | 127.3 |
| D | 2 | 249 | 472690 | 3618.81 | 531 | 515 | 130.5 |
| D | 1 | 47 | 465688 | 3565.15 | 531 | 515 | 130.5 |
| D | 2 | 153 | 102309 | 780.16 | 531 | 515 | 130.5 |
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 |  |