Observation information
- date-obs: 2018-01-30
- time-obs: 14:38:37.185900000
- date-end: 2018-01-30
- time-end: 16:38:25.017000000
- obs_id: A04_174T01_9000001876
- exposure: 4433.61900416
- 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_12663cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12663cztM0_level2_quad_clean.evt
|
| Size (bytes) | 491,103,360 | 103,766,400 |
| Size | 468.4 MB
| 99.0 MB
|
| Events in quadrant A | 3,024,933 | 716,621 |
| Events in quadrant B | 5,377,904 | 636,775 |
| Events in quadrant C | 3,121,704 | 695,993 |
| Events in quadrant D | 2,942,554 | 675,291 |
Level1 data integrity
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12743 | 2 |
| B | 0 | 19889 | 1 |
| C | 0 | 13106 | 1 |
| D | 0 | 12674 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5978 | 80 | 1.338240% |
| B | 5978 | 906 | 15.155570% |
| C | 5978 | 92 | 1.538976% |
| D | 5978 | 57 | 0.953496% |
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 | 7189 | 5979 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7188 | 5978 | 708 | 708 | 9.85% | 11.84% |  |
| C | 7189 | 5979 | 46 | 46 | 0.64% | 0.77% |  |
| D | 7189 | 5979 | 1 | 1 | 0.01% | 0.02% |  |
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 | 12 | 189 | 40441 | 251.37 | 773 | 759 | 157.9 |
| A | 8 | 15 | 10575 | 62.18 | 773 | 759 | 157.9 |
| A | 0 | 226 | 6967 | 39.32 | 773 | 759 | 157.9 |
| B | 4 | 239 | 1921716 | 14407.16 | 709 | 696 | 133.3 |
| B | 4 | 206 | 393930 | 2949.15 | 709 | 696 | 133.3 |
| B | 11 | 51 | 137055 | 1022.65 | 709 | 696 | 133.3 |
| C | 15 | 208 | 238952 | 1400.29 | 737 | 744 | 170.1 |
| C | 14 | 234 | 6295 | 32.63 | 737 | 744 | 170.1 |
| C | 13 | 61 | 5309 | 26.83 | 737 | 744 | 170.1 |
| D | 2 | 234 | 22365 | 111.67 | 740 | 728 | 193.8 |
| D | 10 | 199 | 21420 | 106.79 | 740 | 728 | 193.8 |
| D | 10 | 157 | 20478 | 101.93 | 740 | 728 | 193.8 |
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 |  |