Observation information
- date-obs: 2018-04-07
- time-obs: 06:46:06.870900000
- date-end: 2018-04-07
- time-end: 09:14:53.873300000
- obs_id: G08_083T03_9000002022
- exposure: 2900.79222257
- sourceid: NGC 3621
- observer: stalin
- ra_pnt: 169.5688
- dec_pnt: -32.81417
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_083T03_9000002022_13650cztM0_level2.evt
| modeM0/AS1G08_083T03_9000002022_13650cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,596,160 | 68,607,360 |
| Size | 446.9 MB
| 65.4 MB
|
| Events in quadrant A | 3,297,989 | 412,060 |
| Events in quadrant B | 3,488,002 | 418,999 |
| Events in quadrant C | 3,433,805 | 411,733 |
| Events in quadrant D | 3,546,635 | 397,475 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13440 | 3 |
| B | 0 | 14023 | 2 |
| C | 0 | 13836 | 2 |
| D | 0 | 14149 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 26 | 0 |
| 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 | 6257 | 107 | 1.710085% |
| B | 6257 | 143 | 2.285440% |
| C | 6257 | 108 | 1.726067% |
| D | 6257 | 103 | 1.646156% |
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 | 8928 | 6260 | 10 | 10 | 0.11% | 0.16% |  |
| B | 8928 | 6260 | 6 | 6 | 0.07% | 0.10% |  |
| C | 8928 | 6260 | 2 | 2 | 0.02% | 0.03% |  |
| D | 8928 | 6260 | 12 | 12 | 0.13% | 0.19% |  |
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 | 12 | 96 | 45085 | 260.67 | 845 | 828 | 169.8 |
| A | 0 | 226 | 7633 | 40.08 | 845 | 828 | 169.8 |
| A | 12 | 194 | 6490 | 33.35 | 845 | 828 | 169.8 |
| B | 3 | 64 | 59969 | 372.55 | 847 | 828 | 158.7 |
| B | 0 | 219 | 51199 | 317.31 | 847 | 828 | 158.7 |
| B | 0 | 214 | 39878 | 245.99 | 847 | 828 | 158.7 |
| C | 3 | 233 | 188227 | 991.24 | 830 | 835 | 189.0 |
| C | 14 | 234 | 10967 | 53.59 | 830 | 835 | 189.0 |
| C | 13 | 61 | 5969 | 27.16 | 830 | 835 | 189.0 |
| D | 8 | 195 | 325782 | 1511.17 | 817 | 800 | 215.1 |
| D | 2 | 136 | 40656 | 185.33 | 817 | 800 | 215.1 |
| D | 13 | 249 | 34731 | 157.78 | 817 | 800 | 215.1 |
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 |  |