Observation information
- date-obs: 2016-11-08
- time-obs: 22:30:07.278500000
- date-end: 2016-11-09
- time-end: 00:31:58.282700000
- obs_id: A02_090T01_9000000778
- exposure: 4095.74889028
- 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_9000000778_06037cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000778_06037cztM0_level2_quad_clean.evt
|
| Size (bytes) | 491,883,840 | 87,350,400 |
| Size | 469.1 MB
| 83.3 MB
|
| Events in quadrant A | 5,204,590 | 548,385 |
| Events in quadrant B | 3,538,249 | 567,353 |
| Events in quadrant C | 2,868,129 | 565,149 |
| Events in quadrant D | 2,866,193 | 532,881 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19691 | 2 |
| B | 0 | 14639 | 1 |
| C | 0 | 12775 | 1 |
| D | 0 | 12953 | 1 |
| 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 M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6181 | 496 | 8.024591% |
| B | 6181 | 152 | 2.459149% |
| C | 6181 | 12 | 0.194143% |
| D | 6181 | 24 | 0.388287% |
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 | 7311 | 6182 | 92 | 92 | 1.26% | 1.49% |  |
| B | 7311 | 6182 | 100 | 100 | 1.37% | 1.62% |  |
| C | 7311 | 6182 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7311 | 6182 | 17 | 17 | 0.23% | 0.27% |  |
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 | 13 | 34 | 2230141 | 14967.16 | 722 | 709 | 149.0 |
| A | 14 | 111 | 171818 | 1148.73 | 722 | 709 | 149.0 |
| A | 8 | 15 | 18823 | 121.61 | 722 | 709 | 149.0 |
| B | 3 | 64 | 516566 | 3613.43 | 743 | 727 | 142.8 |
| B | 15 | 204 | 59978 | 415.05 | 743 | 727 | 142.8 |
| B | 4 | 81 | 29488 | 201.47 | 743 | 727 | 142.8 |
| C | 1 | 16 | 35808 | 207.83 | 720 | 727 | 168.8 |
| C | 9 | 54 | 18026 | 102.48 | 720 | 727 | 168.8 |
| C | 13 | 61 | 5884 | 30.55 | 720 | 727 | 168.8 |
| D | 5 | 97 | 59002 | 326.3 | 711 | 690 | 178.7 |
| D | 8 | 195 | 42929 | 236.36 | 711 | 690 | 178.7 |
| D | 7 | 222 | 18016 | 96.95 | 711 | 690 | 178.7 |
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 |  |