Observation information
- date-obs: 2018-09-13
- time-obs: 14:28:03.227700000
- date-end: 2018-09-13
- time-end: 16:33:46.224100000
- obs_id: T02_090T01_9000002360
- exposure: 2702.77112325
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_090T01_9000002360_16008cztM0_level2.evt
| modeM0/AS1T02_090T01_9000002360_16008cztM0_level2_quad_clean.evt
|
| Size (bytes) | 508,412,160 | 70,208,640 |
| Size | 484.9 MB
| 67.0 MB
|
| Events in quadrant A | 3,559,256 | 430,602 |
| Events in quadrant B | 3,811,998 | 434,210 |
| Events in quadrant C | 3,661,293 | 418,155 |
| Events in quadrant D | 3,942,957 | 408,755 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14497 | 2 |
| B | 0 | 15295 | 1 |
| C | 0 | 15035 | 1 |
| D | 0 | 15739 | 1 |
| 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 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6213 | 106 | 1.706100% |
| B | 6213 | 172 | 2.768389% |
| C | 6213 | 132 | 2.124577% |
| D | 6213 | 177 | 2.848865% |
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 | 7544 | 6214 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7544 | 6214 | 58 | 58 | 0.77% | 0.93% |  |
| C | 7544 | 6214 | 7 | 7 | 0.09% | 0.11% |  |
| D | 7544 | 6214 | 105 | 105 | 1.39% | 1.69% |  |
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 | 157 | 85134 | 473.77 | 882 | 868 | 177.9 |
| A | 14 | 235 | 74539 | 414.2 | 882 | 868 | 177.9 |
| A | 0 | 226 | 7939 | 39.75 | 882 | 868 | 177.9 |
| B | 7 | 220 | 132335 | 811.48 | 876 | 860 | 162.0 |
| B | 5 | 65 | 104704 | 640.93 | 876 | 860 | 162.0 |
| B | 4 | 216 | 38049 | 229.53 | 876 | 860 | 162.0 |
| C | 3 | 233 | 214733 | 1095.31 | 849 | 859 | 195.3 |
| C | 14 | 238 | 132185 | 672.56 | 849 | 859 | 195.3 |
| C | 13 | 61 | 6284 | 27.78 | 849 | 859 | 195.3 |
| D | 12 | 218 | 613685 | 2937.67 | 862 | 838 | 208.6 |
| D | 2 | 152 | 27442 | 127.53 | 862 | 838 | 208.6 |
| D | 2 | 234 | 24933 | 115.5 | 862 | 838 | 208.6 |
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 |  |