Observation information
- date-obs: 2018-04-07
- time-obs: 01:36:31.873300000
- date-end: 2018-04-07
- time-end: 04:03:56.871900000
- obs_id: G08_083T03_9000002022
- exposure: 3700.74961373
- 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_13647cztM0_level2.evt
| modeM0/AS1G08_083T03_9000002022_13647cztM0_level2_quad_clean.evt
|
| Size (bytes) | 453,510,720 | 87,644,160 |
| Size | 432.5 MB
| 83.6 MB
|
| Events in quadrant A | 3,165,178 | 553,181 |
| Events in quadrant B | 3,373,337 | 570,110 |
| Events in quadrant C | 3,368,790 | 553,468 |
| Events in quadrant D | 3,391,969 | 530,268 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13304 | 3 |
| B | 0 | 13873 | 2 |
| C | 0 | 13769 | 2 |
| D | 0 | 14075 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25 | 0 |
| B | 0 | 25 | 0 |
| C | 0 | 25 | 0 |
| D | 0 | 25 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6410 | 18 | 0.280811% |
| B | 6410 | 38 | 0.592824% |
| C | 6410 | 19 | 0.296412% |
| D | 6410 | 43 | 0.670827% |
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 | 8846 | 6413 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8846 | 6413 | 8 | 8 | 0.09% | 0.12% |  |
| C | 8846 | 6413 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8846 | 6413 | 25 | 25 | 0.28% | 0.39% |  |
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 | 0 | 226 | 7408 | 40.17 | 820 | 805 | 164.4 |
| A | 1 | 162 | 7079 | 38.17 | 820 | 805 | 164.4 |
| A | 12 | 194 | 6171 | 32.64 | 820 | 805 | 164.4 |
| B | 0 | 219 | 99389 | 641.66 | 828 | 810 | 153.6 |
| B | 12 | 111 | 17826 | 110.76 | 828 | 810 | 153.6 |
| B | 0 | 214 | 16511 | 102.2 | 828 | 810 | 153.6 |
| C | 3 | 233 | 209200 | 1123.22 | 809 | 813 | 185.5 |
| C | 13 | 61 | 5955 | 27.72 | 809 | 813 | 185.5 |
| C | 14 | 234 | 3009 | 11.84 | 809 | 813 | 185.5 |
| D | 13 | 249 | 107586 | 541.9 | 795 | 777 | 197.1 |
| D | 8 | 195 | 104101 | 524.22 | 795 | 777 | 197.1 |
| D | 5 | 222 | 64221 | 321.89 | 795 | 777 | 197.1 |
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 |  |