Observation information
- date-obs: 2017-11-18
- time-obs: 19:08:10.838400000
- date-end: 2017-11-18
- time-end: 21:33:42.841600000
- obs_id: G08_031T01_9000001702
- exposure: 5687.13860081
- sourceid: NGC 253
- observer: askpati
- ra_pnt: 11.8875
- dec_pnt: -25.28833
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_031T01_9000001702_11585cztM0_level2.evt
| modeM0/AS1G08_031T01_9000001702_11585cztM0_level2_quad_clean.evt
|
| Size (bytes) | 650,782,080 | 107,625,600 |
| Size | 620.6 MB
| 102.6 MB
|
| Events in quadrant A | 6,501,606 | 670,284 |
| Events in quadrant B | 5,331,494 | 680,196 |
| Events in quadrant C | 3,534,720 | 686,836 |
| Events in quadrant D | 3,800,404 | 666,694 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24919 | 3 |
| B | 0 | 21113 | 2 |
| C | 0 | 16275 | 2 |
| D | 0 | 17154 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 166 | 0 |
| B | 0 | 166 | 0 |
| C | 0 | 166 | 0 |
| D | 0 | 166 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7977 | 538 | 6.744390% |
| B | 7977 | 432 | 5.415570% |
| C | 7977 | 11 | 0.137896% |
| D | 7977 | 43 | 0.539050% |
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 | 8733 | 7979 | 282 | 282 | 3.23% | 3.53% |  |
| B | 8733 | 7979 | 251 | 251 | 2.87% | 3.15% |  |
| C | 8733 | 7979 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8733 | 7979 | 20 | 20 | 0.23% | 0.25% |  |
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 | 8 | 5 | 2378368 | 12534.87 | 921 | 901 | 189.7 |
| A | 1 | 162 | 206941 | 1086.32 | 921 | 901 | 189.7 |
| A | 1 | 178 | 123026 | 643.89 | 921 | 901 | 189.7 |
| B | 4 | 239 | 1382131 | 7681.11 | 926 | 902 | 179.8 |
| B | 11 | 51 | 133318 | 736.37 | 926 | 902 | 179.8 |
| B | 15 | 204 | 109699 | 605.03 | 926 | 902 | 179.8 |
| C | 13 | 61 | 6630 | 27.05 | 904 | 907 | 211.6 |
| C | 12 | 4 | 4271 | 15.9 | 904 | 907 | 211.6 |
| C | 9 | 54 | 4210 | 15.61 | 904 | 907 | 211.6 |
| D | 2 | 120 | 100417 | 450.8 | 903 | 877 | 220.8 |
| D | 13 | 137 | 53049 | 236.28 | 903 | 877 | 220.8 |
| D | 1 | 52 | 47214 | 209.85 | 903 | 877 | 220.8 |
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 |  |