Observation information
- date-obs: 2018-09-13
- time-obs: 12:41:31.232100000
- date-end: 2018-09-13
- time-end: 14:49:35.227400000
- obs_id: T02_090T01_9000002364
- exposure: 2712.64333694
- 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_9000002364_16007cztM0_level2.evt
| modeM0/AS1T02_090T01_9000002364_16007cztM0_level2_quad_clean.evt
|
| Size (bytes) | 508,561,920 | 71,032,320 |
| Size | 485.0 MB
| 67.7 MB
|
| Events in quadrant A | 3,468,122 | 437,052 |
| Events in quadrant B | 3,861,041 | 437,506 |
| Events in quadrant C | 3,693,356 | 420,010 |
| Events in quadrant D | 3,947,240 | 411,709 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14232 | 3 |
| B | 0 | 15519 | 2 |
| C | 0 | 15039 | 2 |
| D | 0 | 15851 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6368 | 73 | 1.146357% |
| B | 6368 | 148 | 2.324121% |
| C | 6368 | 120 | 1.884422% |
| D | 6368 | 193 | 3.030779% |
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 | 7634 | 6369 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7634 | 6369 | 55 | 55 | 0.72% | 0.86% |  |
| C | 7634 | 6369 | 7 | 7 | 0.09% | 0.11% |  |
| D | 7634 | 6369 | 115 | 115 | 1.51% | 1.81% |  |
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 | 33354 | 183.18 | 889 | 873 | 177.3 |
| A | 13 | 210 | 9149 | 46.67 | 889 | 873 | 177.3 |
| A | 0 | 226 | 8158 | 41.08 | 889 | 873 | 177.3 |
| B | 7 | 220 | 183947 | 1113.88 | 879 | 862 | 164.4 |
| B | 5 | 65 | 98209 | 592.26 | 879 | 862 | 164.4 |
| B | 10 | 245 | 47486 | 283.66 | 879 | 862 | 164.4 |
| C | 3 | 233 | 240234 | 1217.7 | 849 | 858 | 196.6 |
| C | 14 | 238 | 132888 | 671.63 | 849 | 858 | 196.6 |
| C | 9 | 54 | 7264 | 32.59 | 849 | 858 | 196.6 |
| D | 12 | 218 | 554758 | 2634.76 | 861 | 839 | 210.2 |
| D | 2 | 152 | 63759 | 299.28 | 861 | 839 | 210.2 |
| D | 2 | 234 | 26075 | 120.04 | 861 | 839 | 210.2 |
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 |  |