Observation information
- date-obs: 2017-07-30
- time-obs: 13:11:10.382900000
- date-end: 2017-07-30
- time-end: 15:13:54.041300000
- obs_id: A03_107T01_9000001418
- exposure: 4975.58469164
- sourceid: 4U 1820-30
- observer: graman
- ra_pnt: 275.9188
- dec_pnt: -30.36128
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_107T01_9000001418_09938cztM0_level2.evt
| modeM0/AS1A03_107T01_9000001418_09938cztM0_level2_quad_clean.evt
|
| Size (bytes) | 591,459,840 | 93,994,560 |
| Size | 564.1 MB
| 89.6 MB
|
| Events in quadrant A | 3,511,338 | 605,277 |
| Events in quadrant B | 4,019,986 | 613,796 |
| Events in quadrant C | 2,913,751 | 616,503 |
| Events in quadrant D | 7,028,897 | 558,733 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14792 | 10 |
| B | 0 | 16154 | 3 |
| C | 0 | 13155 | 3 |
| D | 0 | 25471 | 14 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6476 | 151 | 2.331686% |
| B | 6478 | 169 | 2.608830% |
| C | 6478 | 55 | 0.849027% |
| D | 6477 | 578 | 8.923885% |
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 | 7364 | 6479 | 63 | 63 | 0.86% | 0.97% |  |
| B | 7364 | 6479 | 55 | 55 | 0.75% | 0.85% |  |
| C | 7364 | 6479 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7364 | 6478 | 588 | 588 | 7.98% | 9.08% |  |
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 | 239 | 483752 | 3074.97 | 765 | 748 | 157.1 |
| A | 15 | 174 | 79843 | 503.55 | 765 | 748 | 157.1 |
| A | 0 | 226 | 7284 | 41.61 | 765 | 748 | 157.1 |
| B | 4 | 81 | 768838 | 5195.06 | 767 | 747 | 147.9 |
| B | 4 | 239 | 92891 | 623.23 | 767 | 747 | 147.9 |
| B | 0 | 214 | 77804 | 521.18 | 767 | 747 | 147.9 |
| C | 13 | 61 | 5622 | 27.9 | 744 | 747 | 174.7 |
| C | 14 | 67 | 3333 | 14.8 | 744 | 747 | 174.7 |
| C | 14 | 234 | 3281 | 14.5 | 744 | 747 | 174.7 |
| D | 2 | 16 | 2935428 | 15876.79 | 729 | 710 | 184.8 |
| D | 12 | 233 | 539611 | 2915.45 | 729 | 710 | 184.8 |
| D | 1 | 52 | 301633 | 1627.99 | 729 | 710 | 184.8 |
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 |  |