Observation information
- date-obs: 2017-01-19
- time-obs: 05:01:56.981000000
- date-end: 2017-01-19
- time-end: 07:05:03.985300000
- obs_id: A02_090T01_9000000970
- exposure: 2478.75302747
- 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_9000000970_07092cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000970_07092cztM0_level2_quad_clean.evt
|
| Size (bytes) | 413,254,080 | 62,182,080 |
| Size | 394.1 MB
| 59.3 MB
|
| Events in quadrant A | 3,050,853 | 368,140 |
| Events in quadrant B | 3,181,150 | 372,984 |
| Events in quadrant C | 3,002,721 | 366,297 |
| Events in quadrant D | 2,864,377 | 347,674 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12644 | 2 |
| B | 0 | 13029 | 1 |
| C | 0 | 12703 | 1 |
| D | 0 | 12674 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6117 | 60 | 0.980873% |
| B | 6117 | 85 | 1.389570% |
| C | 6117 | 54 | 0.882786% |
| D | 6117 | 57 | 0.931829% |
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 | 7387 | 6118 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7387 | 6118 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7387 | 6118 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7387 | 6118 | 9 | 9 | 0.12% | 0.15% |  |
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 | 13 | 14 | 41397 | 256.61 | 781 | 768 | 158.3 |
| A | 0 | 226 | 7452 | 42.22 | 781 | 768 | 158.3 |
| A | 12 | 194 | 7087 | 39.91 | 781 | 768 | 158.3 |
| B | 0 | 214 | 61861 | 413.22 | 791 | 775 | 147.8 |
| B | 0 | 219 | 51112 | 340.51 | 791 | 775 | 147.8 |
| B | 12 | 111 | 14744 | 94.49 | 791 | 775 | 147.8 |
| C | 4 | 254 | 38607 | 215.88 | 757 | 765 | 175.3 |
| C | 9 | 68 | 10034 | 52.88 | 757 | 765 | 175.3 |
| C | 13 | 61 | 5918 | 29.4 | 757 | 765 | 175.3 |
| D | 2 | 136 | 25781 | 135.93 | 748 | 727 | 184.3 |
| D | 12 | 233 | 20679 | 108.25 | 748 | 727 | 184.3 |
| D | 7 | 55 | 12346 | 63.04 | 748 | 727 | 184.3 |
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 |  |