Observation information
- date-obs: 2017-01-20
- time-obs: 14:11:56.630900000
- date-end: 2017-01-20
- time-end: 16:13:21.069900000
- obs_id: A02_090T01_9000000970
- exposure: 4971.65066586
- 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_07112cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000970_07112cztM0_level2_quad_clean.evt
|
| Size (bytes) | 505,673,280 | 102,864,960 |
| Size | 482.2 MB
| 98.1 MB
|
| Events in quadrant A | 3,308,745 | 667,235 |
| Events in quadrant B | 3,628,112 | 672,304 |
| Events in quadrant C | 3,394,762 | 664,014 |
| Events in quadrant D | 4,504,988 | 621,842 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14522 | 2 |
| B | 0 | 15275 | 1 |
| C | 0 | 14850 | 1 |
| D | 0 | 17691 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7035 | 154 | 2.189055% |
| B | 7035 | 199 | 2.828714% |
| C | 7035 | 122 | 1.734186% |
| D | 7035 | 306 | 4.349680% |
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 | 7285 | 7035 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7285 | 7035 | 33 | 33 | 0.45% | 0.47% |  |
| C | 7285 | 7035 | 18 | 18 | 0.25% | 0.26% |  |
| D | 7285 | 7035 | 175 | 175 | 2.40% | 2.49% |  |
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 | 0 | 226 | 8260 | 41.84 | 855 | 838 | 177.4 |
| A | 12 | 194 | 7794 | 39.21 | 855 | 838 | 177.4 |
| A | 8 | 15 | 6576 | 32.35 | 855 | 838 | 177.4 |
| B | 3 | 220 | 117818 | 712.56 | 854 | 835 | 164.2 |
| B | 0 | 214 | 114530 | 692.53 | 854 | 835 | 164.2 |
| B | 4 | 81 | 39546 | 235.79 | 854 | 835 | 164.2 |
| C | 4 | 254 | 130421 | 665.44 | 829 | 836 | 194.7 |
| C | 9 | 68 | 13851 | 66.83 | 829 | 836 | 194.7 |
| C | 13 | 61 | 6449 | 28.82 | 829 | 836 | 194.7 |
| D | 2 | 216 | 985562 | 4815.63 | 823 | 799 | 204.5 |
| D | 8 | 195 | 352156 | 1718.18 | 823 | 799 | 204.5 |
| D | 5 | 81 | 24946 | 118.08 | 823 | 799 | 204.5 |
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 |  |