Observation information
- date-obs: 2018-02-01
- time-obs: 23:41:15.987200000
- date-end: 2018-02-02
- time-end: 02:03:53.985300000
- obs_id: A04_174T01_9000001876
- exposure: 4695.59387318
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12698cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12698cztM0_level2_quad_clean.evt
|
| Size (bytes) | 590,558,400 | 104,492,160 |
| Size | 563.2 MB
| 99.7 MB
|
| Events in quadrant A | 3,619,739 | 692,788 |
| Events in quadrant B | 6,438,946 | 586,611 |
| Events in quadrant C | 3,631,637 | 691,707 |
| Events in quadrant D | 3,676,013 | 661,175 |
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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15884 | 2 |
| B | 0 | 24178 | 1 |
| C | 0 | 15965 | 1 |
| D | 0 | 16306 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7648 | 45 | 0.588389% |
| B | 7648 | 1193 | 15.598849% |
| C | 7648 | 42 | 0.549163% |
| D | 7648 | 41 | 0.536088% |
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 | 8559 | 7651 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8559 | 7651 | 935 | 935 | 10.92% | 12.22% |  |
| C | 8559 | 7651 | 9 | 9 | 0.11% | 0.12% |  |
| D | 8559 | 7651 | 15 | 15 | 0.18% | 0.20% |  |
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 | 8 | 15 | 24306 | 121.41 | 930 | 909 | 192.7 |
| A | 12 | 189 | 18413 | 90.83 | 930 | 909 | 192.7 |
| A | 15 | 174 | 8571 | 39.76 | 930 | 909 | 192.7 |
| B | 4 | 239 | 2892985 | 17729.05 | 845 | 826 | 163.1 |
| B | 3 | 209 | 88808 | 539.33 | 845 | 826 | 163.1 |
| B | 0 | 219 | 34053 | 203.68 | 845 | 826 | 163.1 |
| C | 15 | 208 | 86697 | 402.41 | 907 | 916 | 213.2 |
| C | 14 | 234 | 6524 | 26.31 | 907 | 916 | 213.2 |
| C | 13 | 61 | 6463 | 26.02 | 907 | 916 | 213.2 |
| D | 1 | 52 | 52788 | 219.43 | 894 | 877 | 236.6 |
| D | 13 | 249 | 41984 | 173.76 | 894 | 877 | 236.6 |
| D | 13 | 104 | 34540 | 142.29 | 894 | 877 | 236.6 |
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 |  |