Observation information
- date-obs: 2018-04-08
- time-obs: 05:44:55.871400000
- date-end: 2018-04-08
- time-end: 07:56:24.868200000
- obs_id: T02_039T01_9000002026
- exposure: 4251.98815295
- sourceid: Crab
- observer: tilak
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_039T01_9000002026_13664cztM0_level2.evt
| modeM0/AS1T02_039T01_9000002026_13664cztM0_level2_quad_clean.evt
|
| Size (bytes) | 554,993,280 | 103,777,920 |
| Size | 529.3 MB
| 99.0 MB
|
| Events in quadrant A | 3,560,467 | 699,020 |
| Events in quadrant B | 4,375,546 | 696,379 |
| Events in quadrant C | 3,514,218 | 682,287 |
| Events in quadrant D | 4,934,106 | 628,709 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14322 | 3 |
| B | 0 | 17148 | 2 |
| C | 0 | 14197 | 2 |
| D | 0 | 18709 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6259 | 116 | 1.853331% |
| B | 6259 | 428 | 6.838153% |
| C | 6259 | 86 | 1.374021% |
| D | 6259 | 386 | 6.167119% |
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 | 7580 | 6262 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7580 | 6262 | 93 | 93 | 1.23% | 1.49% |  |
| C | 7580 | 6262 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7580 | 6262 | 331 | 331 | 4.37% | 5.29% |  |
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 | 45915 | 250.8 | 894 | 881 | 179.6 |
| A | 9 | 143 | 40682 | 221.66 | 894 | 881 | 179.6 |
| A | 1 | 162 | 18960 | 100.69 | 894 | 881 | 179.6 |
| B | 0 | 219 | 836706 | 5130.1 | 872 | 859 | 162.9 |
| B | 3 | 64 | 75684 | 459.25 | 872 | 859 | 162.9 |
| B | 0 | 214 | 20707 | 121.82 | 872 | 859 | 162.9 |
| C | 3 | 233 | 212222 | 1093.83 | 845 | 854 | 193.2 |
| C | 13 | 61 | 6255 | 27.95 | 845 | 854 | 193.2 |
| C | 14 | 234 | 3477 | 13.57 | 845 | 854 | 193.2 |
| D | 5 | 222 | 1389947 | 6874.09 | 839 | 819 | 202.1 |
| D | 13 | 249 | 163108 | 803.09 | 839 | 819 | 202.1 |
| D | 8 | 195 | 132751 | 652.86 | 839 | 819 | 202.1 |
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 |  |