Observation information
- date-obs: 2020-09-27
- time-obs: 21:52:56.460700000
- date-end: 2020-09-28
- time-end: 00:04:11.041700000
- obs_id: A09_120T02_9000003904
- exposure: 4787.19313923
- sourceid: Crab
- observer: avishek
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_120T02_9000003904_27040cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003904_27040cztM0_level2_quad_clean.evt
|
| Size (bytes) | 637,600,320 | 116,559,360 |
| Size | 608.1 MB
| 111.2 MB
|
| Events in quadrant A | 8,278,379 | 689,052 |
| Events in quadrant B | 3,429,999 | 839,390 |
| Events in quadrant C | 3,483,094 | 798,173 |
| Events in quadrant D | 3,690,986 | 762,590 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28930 | 0 |
| B | 0 | 14010 | 0 |
| C | 0 | 14211 | 0 |
| D | 0 | 15086 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6311 | 1979 | 31.357946% |
| B | 6311 | 64 | 1.014102% |
| C | 6311 | 112 | 1.774679% |
| D | 6311 | 114 | 1.806370% |
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 | 7590 | 6310 | 1614 | 1614 | 21.26% | 25.58% |  |
| B | 7591 | 6312 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7591 | 6312 | 21 | 21 | 0.28% | 0.33% |  |
| D | 7591 | 6311 | 85 | 85 | 1.12% | 1.35% |  |
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 | 14 | 235 | 5300368 | 35310.57 | 750 | 740 | 150.1 |
| A | 6 | 16 | 40110 | 262.32 | 750 | 740 | 150.1 |
| A | 8 | 192 | 25752 | 166.65 | 750 | 740 | 150.1 |
| B | 15 | 33 | 28853 | 172.13 | 865 | 850 | 162.7 |
| B | 0 | 219 | 23052 | 136.47 | 865 | 850 | 162.7 |
| B | 12 | 111 | 18672 | 109.55 | 865 | 850 | 162.7 |
| C | 14 | 238 | 134721 | 682.29 | 838 | 848 | 196.2 |
| C | 2 | 16 | 78376 | 395.13 | 838 | 848 | 196.2 |
| C | 13 | 61 | 5700 | 24.73 | 838 | 848 | 196.2 |
| D | 5 | 222 | 342302 | 1736.26 | 827 | 810 | 196.7 |
| D | 2 | 250 | 122880 | 620.64 | 827 | 810 | 196.7 |
| D | 1 | 52 | 72563 | 364.82 | 827 | 810 | 196.7 |
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 |  |