Observation information
- date-obs: 2018-10-02
- time-obs: 00:32:09.607700000
- date-end: 2018-10-02
- time-end: 02:59:37.601300000
- obs_id: A05_072T05_9000002394
- exposure: 3187.2365887
- sourceid: NGC 6809
- observer: annapurni
- ra_pnt: 294.9988
- dec_pnt: -30.96475
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_072T05_9000002394_16281cztM0_level2.evt
| modeM0/AS1A05_072T05_9000002394_16281cztM0_level2_quad_clean.evt
|
| Size (bytes) | 470,278,080 | 75,672,000 |
| Size | 448.5 MB
| 72.2 MB
|
| Events in quadrant A | 3,354,813 | 456,636 |
| Events in quadrant B | 3,588,576 | 471,178 |
| Events in quadrant C | 3,380,339 | 459,652 |
| Events in quadrant D | 3,470,692 | 444,130 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14014 | 3 |
| B | 0 | 14703 | 2 |
| C | 0 | 13974 | 2 |
| D | 0 | 14531 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6593 | 64 | 0.970727% |
| B | 6593 | 99 | 1.501593% |
| C | 6593 | 106 | 1.607766% |
| D | 6593 | 136 | 2.062794% |
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 | 8849 | 6596 | 1 | 1 | 0.01% | 0.02% |  |
| B | 8849 | 6596 | 3 | 3 | 0.03% | 0.05% |  |
| C | 8849 | 6596 | 1 | 1 | 0.01% | 0.02% |  |
| D | 8849 | 6596 | 65 | 65 | 0.73% | 0.99% |  |
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 | 174 | 87047 | 509.28 | 845 | 827 | 169.3 |
| A | 9 | 143 | 13981 | 77.7 | 845 | 827 | 169.3 |
| A | 13 | 248 | 9003 | 48.29 | 845 | 827 | 169.3 |
| B | 15 | 35 | 136884 | 843.96 | 857 | 837 | 161.2 |
| B | 0 | 189 | 44542 | 271.12 | 857 | 837 | 161.2 |
| B | 0 | 198 | 42829 | 260.49 | 857 | 837 | 161.2 |
| C | 14 | 238 | 129543 | 679.68 | 823 | 829 | 189.4 |
| C | 0 | 207 | 21415 | 108.7 | 823 | 829 | 189.4 |
| C | 3 | 233 | 20020 | 101.34 | 823 | 829 | 189.4 |
| D | 10 | 70 | 203431 | 1021.19 | 825 | 803 | 198.4 |
| D | 1 | 52 | 82298 | 410.71 | 825 | 803 | 198.4 |
| D | 15 | 0 | 60706 | 301.89 | 825 | 803 | 198.4 |
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 |  |