Observation information
- date-obs: 2017-01-19
- time-obs: 20:19:02.232600000
- date-end: 2017-01-19
- time-end: 22:47:16.027800000
- obs_id: A02_090T01_9000000970
- exposure: 4990.33970519
- 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_07101cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000970_07101cztM0_level2_quad_clean.evt
|
| Size (bytes) | 484,698,240 | 107,812,800 |
| Size | 462.2 MB
| 102.8 MB
|
| Events in quadrant A | 3,363,214 | 699,247 |
| Events in quadrant B | 3,533,920 | 707,275 |
| Events in quadrant C | 3,372,825 | 693,163 |
| Events in quadrant D | 3,917,574 | 661,559 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14909 | 3 |
| B | 0 | 15238 | 2 |
| C | 0 | 14840 | 2 |
| D | 0 | 16350 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7234 | 64 | 0.884711% |
| B | 7234 | 74 | 1.022947% |
| C | 7234 | 54 | 0.746475% |
| D | 7234 | 85 | 1.175007% |
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 | 8894 | 7234 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8894 | 7234 | 1 | 1 | 0.01% | 0.01% |  |
| C | 8894 | 7235 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8894 | 7234 | 37 | 37 | 0.42% | 0.51% |  |
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 | 8228 | 41.34 | 873 | 856 | 178.3 |
| A | 12 | 194 | 7758 | 38.7 | 873 | 856 | 178.3 |
| A | 3 | 137 | 2723 | 10.47 | 873 | 856 | 178.3 |
| B | 0 | 214 | 53460 | 308.54 | 883 | 862 | 170.5 |
| B | 0 | 219 | 28700 | 163.3 | 883 | 862 | 170.5 |
| B | 4 | 81 | 23799 | 134.55 | 883 | 862 | 170.5 |
| C | 9 | 68 | 32186 | 157.61 | 852 | 860 | 198.8 |
| C | 13 | 61 | 6757 | 29.67 | 852 | 860 | 198.8 |
| C | 8 | 128 | 5868 | 25.19 | 852 | 860 | 198.8 |
| D | 8 | 195 | 364351 | 1732.52 | 850 | 824 | 209.8 |
| D | 13 | 169 | 199079 | 944.86 | 850 | 824 | 209.8 |
| D | 2 | 216 | 55368 | 259.95 | 850 | 824 | 209.8 |
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 |  |