Observation information
- date-obs: 2016-11-24
- time-obs: 14:40:10.112500000
- date-end: 2016-11-24
- time-end: 16:40:20.114000000
- obs_id: C02_018T01_9000000822
- exposure: 3877.69540527
- sourceid: Crab
- observer: ravibt
- ra_pnt: 310.9978
- dec_pnt: -16.051
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_018T01_9000000822_06269cztM0_level2.evt
| modeM0/AS1C02_018T01_9000000822_06269cztM0_level2_quad_clean.evt
|
| Size (bytes) | 586,008,000 | 79,090,560 |
| Size | 558.9 MB
| 75.4 MB
|
| Events in quadrant A | 3,689,200 | 504,019 |
| Events in quadrant B | 4,058,490 | 505,372 |
| Events in quadrant C | 2,837,729 | 515,348 |
| Events in quadrant D | 6,740,665 | 435,368 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15313 | 2 |
| B | 0 | 16245 | 1 |
| C | 0 | 12947 | 1 |
| D | 0 | 24329 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6225 | 101 | 1.622490% |
| B | 6225 | 236 | 3.791165% |
| C | 6225 | 41 | 0.658635% |
| D | 6225 | 963 | 15.469880% |
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 | 7210 | 6225 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7210 | 6225 | 100 | 100 | 1.39% | 1.61% |  |
| C | 7210 | 6225 | 6 | 6 | 0.08% | 0.10% |  |
| D | 7210 | 6225 | 915 | 915 | 12.69% | 14.70% |  |
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 | 587730 | 3882.1 | 735 | 721 | 151.2 |
| A | 15 | 236 | 261789 | 1726.54 | 735 | 721 | 151.2 |
| A | 0 | 226 | 7354 | 43.87 | 735 | 721 | 151.2 |
| B | 15 | 85 | 249373 | 1752.75 | 736 | 721 | 141.9 |
| B | 0 | 219 | 248255 | 1744.87 | 736 | 721 | 141.9 |
| B | 3 | 64 | 169547 | 1190.05 | 736 | 721 | 141.9 |
| C | 9 | 54 | 43293 | 256.34 | 711 | 716 | 166.1 |
| C | 1 | 16 | 11973 | 67.77 | 711 | 716 | 166.1 |
| C | 13 | 61 | 5804 | 30.63 | 711 | 716 | 166.1 |
| D | 12 | 220 | 3523790 | 21175.26 | 658 | 635 | 166.4 |
| D | 12 | 221 | 199263 | 1193.82 | 658 | 635 | 166.4 |
| D | 7 | 55 | 113785 | 680.07 | 658 | 635 | 166.4 |
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 |  |