Observation information
- date-obs: 2018-04-16
- time-obs: 22:30:18.384000000
- date-end: 2018-04-17
- time-end: 00:55:23.377300000
- obs_id: A04_199T01_9000002040
- exposure: 3463.54919982
- sourceid: OJ 287
- observer: goputifr
- ra_pnt: 133.7036
- dec_pnt: 20.10851
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_199T01_9000002040_13793cztM0_level2.evt
| modeM0/AS1A04_199T01_9000002040_13793cztM0_level2_quad_clean.evt
|
| Size (bytes) | 452,865,600 | 81,783,360 |
| Size | 431.9 MB
| 78.0 MB
|
| Events in quadrant A | 3,177,902 | 518,698 |
| Events in quadrant B | 3,276,665 | 534,477 |
| Events in quadrant C | 3,040,795 | 513,425 |
| Events in quadrant D | 3,804,167 | 482,741 |
Level1 data integrity
| 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 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13133 | 3 |
| B | 0 | 13384 | 2 |
| C | 0 | 12727 | 2 |
| D | 0 | 15530 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6120 | 44 | 0.718954% |
| B | 6120 | 78 | 1.274510% |
| C | 6120 | 27 | 0.441176% |
| D | 6120 | 51 | 0.833333% |
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 | 8706 | 6123 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8706 | 6123 | 20 | 20 | 0.23% | 0.33% |  |
| C | 8706 | 6123 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8706 | 6123 | 34 | 34 | 0.39% | 0.56% |  |
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 | 157 | 104575 | 653.98 | 788 | 774 | 158.7 |
| A | 8 | 15 | 14165 | 84.37 | 788 | 774 | 158.7 |
| A | 1 | 162 | 11963 | 70.49 | 788 | 774 | 158.7 |
| B | 0 | 219 | 64861 | 432.82 | 795 | 778 | 148.1 |
| B | 4 | 80 | 63016 | 420.36 | 795 | 778 | 148.1 |
| B | 4 | 173 | 19040 | 123.34 | 795 | 778 | 148.1 |
| C | 3 | 233 | 50688 | 281.56 | 765 | 769 | 177.3 |
| C | 14 | 220 | 7800 | 39.66 | 765 | 769 | 177.3 |
| C | 13 | 61 | 5610 | 27.3 | 765 | 769 | 177.3 |
| D | 1 | 52 | 682938 | 3784.13 | 751 | 731 | 180.3 |
| D | 10 | 157 | 169673 | 937.1 | 751 | 731 | 180.3 |
| D | 13 | 249 | 36056 | 195.94 | 751 | 731 | 180.3 |
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 |  |