Observation information
- date-obs: 2018-09-14
- time-obs: 18:01:31.167000000
- date-end: 2018-09-14
- time-end: 20:22:43.162200000
- obs_id: T02_091T01_9000002368
- exposure: 3991.85545687
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_091T01_9000002368_16025cztM0_level2.evt
| modeM0/AS1T02_091T01_9000002368_16025cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,060,480 | 93,427,200 |
| Size | 446.4 MB
| 89.1 MB
|
| Events in quadrant A | 3,384,319 | 601,028 |
| Events in quadrant B | 3,474,340 | 613,127 |
| Events in quadrant C | 3,486,502 | 591,316 |
| Events in quadrant D | 3,397,608 | 579,437 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13987 | 3 |
| B | 0 | 14287 | 2 |
| C | 0 | 14149 | 2 |
| D | 0 | 14272 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6375 | 88 | 1.380392% |
| B | 6375 | 71 | 1.113725% |
| C | 6375 | 81 | 1.270588% |
| D | 6375 | 64 | 1.003922% |
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 | 7506 | 6377 | 33 | 33 | 0.44% | 0.52% |  |
| B | 7506 | 6376 | 7 | 7 | 0.09% | 0.11% |  |
| C | 7506 | 6376 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7506 | 6377 | 23 | 23 | 0.31% | 0.36% |  |
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 | 15 | 69 | 84183 | 486.54 | 853 | 839 | 171.3 |
| A | 9 | 143 | 8304 | 43.58 | 853 | 839 | 171.3 |
| A | 0 | 226 | 7524 | 39.03 | 853 | 839 | 171.3 |
| B | 7 | 220 | 31621 | 191.0 | 852 | 834 | 161.2 |
| B | 15 | 222 | 29096 | 175.34 | 852 | 834 | 161.2 |
| B | 12 | 111 | 17300 | 102.15 | 852 | 834 | 161.2 |
| C | 3 | 233 | 146920 | 764.17 | 822 | 831 | 191.2 |
| C | 14 | 238 | 125792 | 653.65 | 822 | 831 | 191.2 |
| C | 10 | 22 | 9785 | 46.84 | 822 | 831 | 191.2 |
| D | 2 | 152 | 110718 | 526.6 | 839 | 819 | 208.7 |
| D | 2 | 16 | 53091 | 250.47 | 839 | 819 | 208.7 |
| D | 2 | 234 | 24340 | 112.7 | 839 | 819 | 208.7 |
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 |  |