Observation information
- date-obs: 2017-07-12
- time-obs: 14:54:46.637400000
- date-end: 2017-07-12
- time-end: 16:57:41.641800000
- obs_id: A02_198T01_9000001376
- exposure: 5269.19910076
- sourceid: 4U 1538-52
- observer: varun
- ra_pnt: 235.5973
- dec_pnt: -52.386
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_198T01_9000001376_09673cztM0_level2.evt
| modeM0/AS1A02_198T01_9000001376_09673cztM0_level2_quad_clean.evt
|
| Size (bytes) | 482,765,760 | 100,820,160 |
| Size | 460.4 MB
| 96.1 MB
|
| Events in quadrant A | 3,666,884 | 644,843 |
| Events in quadrant B | 3,577,016 | 645,183 |
| Events in quadrant C | 3,199,299 | 641,775 |
| Events in quadrant D | 3,691,045 | 623,288 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 2 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 2 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15502 | 18 |
| B | 0 | 15357 | 13 |
| C | 0 | 14688 | 15 |
| D | 0 | 15968 | 20 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7158 | 107 | 1.494831% |
| B | 7159 | 103 | 1.438748% |
| C | 7158 | 30 | 0.419111% |
| D | 7155 | 95 | 1.327743% |
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 | 7375 | 7166 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7375 | 7166 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7375 | 7166 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7375 | 7165 | 46 | 46 | 0.62% | 0.64% |  |
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 | 1 | 162 | 149667 | 862.17 | 846 | 826 | 172.6 |
| A | 8 | 15 | 59102 | 337.57 | 846 | 826 | 172.6 |
| A | 1 | 178 | 56479 | 322.37 | 846 | 826 | 172.6 |
| B | 0 | 214 | 112593 | 687.66 | 846 | 824 | 162.5 |
| B | 4 | 173 | 49511 | 299.55 | 846 | 824 | 162.5 |
| B | 0 | 219 | 44704 | 269.97 | 846 | 824 | 162.5 |
| C | 8 | 128 | 11445 | 56.38 | 814 | 818 | 188.5 |
| C | 8 | 112 | 6194 | 28.52 | 814 | 818 | 188.5 |
| C | 13 | 61 | 6167 | 28.38 | 814 | 818 | 188.5 |
| D | 12 | 233 | 165941 | 816.08 | 811 | 789 | 202.4 |
| D | 1 | 52 | 150060 | 737.6 | 811 | 789 | 202.4 |
| D | 7 | 71 | 120739 | 592.72 | 811 | 789 | 202.4 |
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 |  |