Observation information
- date-obs: 2016-11-09
- time-obs: 07:13:13.295900000
- date-end: 2016-11-09
- time-end: 17:51:27.317900000
- obs_id: A02_090T01_9000000778
- exposure: 18701.8509148
- sourceid: Crab
- observer: tanmoy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_090T01_9000000778_06048cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000778_06048cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,144,681,280 | 402,275,520 |
| Size | 2.0 GB
| 383.6 MB
|
| Events in quadrant A | 14,560,984 | 2,558,866 |
| Events in quadrant B | 19,145,928 | 2,536,996 |
| Events in quadrant C | 14,339,937 | 2,552,241 |
| Events in quadrant D | 14,840,805 | 2,435,381 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 63269 | 6 |
| B | 0 | 76701 | 5 |
| C | 0 | 63108 | 5 |
| D | 0 | 65582 | 8 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 622 | 0 |
| B | 0 | 622 | 0 |
| C | 0 | 622 | 0 |
| D | 0 | 622 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 41 | 0 |
| B | 0 | 41 | 0 |
| C | 0 | 41 | 0 |
| D | 0 | 41 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 30562 | 349 | 1.141941% |
| B | 30562 | 1569 | 5.133826% |
| C | 30562 | 334 | 1.092860% |
| D | 30561 | 349 | 1.141978% |
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 | 38295 | 30564 | 2 | 2 | 0.01% | 0.01% |  |
| B | 38295 | 30564 | 918 | 918 | 2.40% | 3.00% |  |
| C | 38295 | 30564 | 26 | 26 | 0.07% | 0.09% |  |
| D | 38295 | 30563 | 38 | 38 | 0.10% | 0.12% |  |
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 | 252597 | 330.63 | 3681 | 3611 | 753.1 |
| A | 0 | 254 | 43124 | 52.47 | 3681 | 3611 | 753.1 |
| A | 0 | 50 | 39667 | 47.88 | 3681 | 3611 | 753.1 |
| B | 3 | 64 | 3786019 | 5419.98 | 3668 | 3586 | 697.9 |
| B | 15 | 204 | 471606 | 670.64 | 3668 | 3586 | 697.9 |
| B | 0 | 214 | 253635 | 358.3 | 3668 | 3586 | 697.9 |
| C | 9 | 54 | 115887 | 134.32 | 3601 | 3640 | 835.6 |
| C | 1 | 16 | 97639 | 112.49 | 3601 | 3640 | 835.6 |
| C | 8 | 79 | 34771 | 37.25 | 3601 | 3640 | 835.6 |
| D | 12 | 79 | 788605 | 891.42 | 3589 | 3482 | 880.8 |
| D | 8 | 195 | 177481 | 197.56 | 3589 | 3482 | 880.8 |
| D | 2 | 14 | 91327 | 99.74 | 3589 | 3482 | 880.8 |
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 |  |