Observation information
- date-obs: 2018-01-31
- time-obs: 23:31:35.999900000
- date-end: 2018-02-01
- time-end: 01:39:03.998800000
- obs_id: A04_174T01_9000001876
- exposure: 4495.82475135
- 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_12683cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12683cztM0_level2_quad_clean.evt
|
| Size (bytes) | 566,015,040 | 99,999,360 |
| Size | 539.8 MB
| 95.4 MB
|
| Events in quadrant A | 3,487,800 | 661,754 |
| Events in quadrant B | 5,766,752 | 581,485 |
| Events in quadrant C | 3,412,602 | 660,374 |
| Events in quadrant D | 3,985,824 | 622,814 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15150 | 3 |
| B | 0 | 21968 | 2 |
| C | 0 | 14958 | 2 |
| D | 0 | 16941 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7203 | 39 | 0.541441% |
| B | 7203 | 973 | 13.508260% |
| C | 7203 | 15 | 0.208247% |
| D | 7203 | 197 | 2.734972% |
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 | 7644 | 7204 | 3 | 3 | 0.04% | 0.04% |  |
| B | 7644 | 7204 | 811 | 811 | 10.61% | 11.26% |  |
| C | 7644 | 7204 | 12 | 12 | 0.16% | 0.17% |  |
| D | 7644 | 7204 | 169 | 169 | 2.21% | 2.35% |  |
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 | 95336 | 527.47 | 868 | 849 | 179.1 |
| A | 9 | 143 | 49047 | 269.07 | 868 | 849 | 179.1 |
| A | 0 | 226 | 7698 | 38.23 | 868 | 849 | 179.1 |
| B | 4 | 239 | 2375928 | 15389.99 | 806 | 787 | 154.3 |
| B | 3 | 64 | 81007 | 519.79 | 806 | 787 | 154.3 |
| B | 11 | 51 | 43055 | 273.88 | 806 | 787 | 154.3 |
| C | 15 | 208 | 107999 | 543.0 | 846 | 853 | 197.3 |
| C | 13 | 61 | 6082 | 26.5 | 846 | 853 | 197.3 |
| C | 14 | 234 | 5243 | 22.25 | 846 | 853 | 197.3 |
| D | 1 | 52 | 483652 | 2405.61 | 827 | 810 | 200.7 |
| D | 13 | 104 | 244851 | 1215.86 | 827 | 810 | 200.7 |
| D | 8 | 195 | 39685 | 193.68 | 827 | 810 | 200.7 |
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 |  |