Observation information
- date-obs: 2019-08-15
- time-obs: 07:46:27.882900000
- date-end: 2019-08-15
- time-end: 09:56:54.884100000
- obs_id: T03_131T01_9000003090
- exposure: 3723.1821809
- sourceid: SAX J1808-3658
- observer: an.sanna
- ra_pnt: 272.1147
- dec_pnt: -36.97897
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_131T01_9000003090_20977cztM0_level2.evt
| modeM0/AS1T03_131T01_9000003090_20977cztM0_level2_quad_clean.evt
|
| Size (bytes) | 599,791,680 | 79,246,080 |
| Size | 572.0 MB
| 75.6 MB
|
| Events in quadrant A | 3,412,915 | 497,042 |
| Events in quadrant B | 3,707,749 | 502,931 |
| Events in quadrant C | 3,474,744 | 492,876 |
| Events in quadrant D | 7,085,852 | 410,059 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14691 | 2 |
| B | 0 | 15413 | 2 |
| C | 0 | 14722 | 2 |
| D | 0 | 25862 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7121 | 150 | 2.106446% |
| B | 7121 | 201 | 2.822637% |
| C | 7121 | 204 | 2.864766% |
| D | 7120 | 1292 | 18.146067% |
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 | 7631 | 7122 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7631 | 7122 | 17 | 17 | 0.22% | 0.24% |  |
| C | 7631 | 7122 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7630 | 7121 | 1091 | 1091 | 14.30% | 15.32% |  |
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 | 2 | 79 | 14726 | 77.82 | 884 | 865 | 178.1 |
| A | 3 | 137 | 7304 | 36.15 | 884 | 865 | 178.1 |
| A | 0 | 226 | 7257 | 35.89 | 884 | 865 | 178.1 |
| B | 7 | 220 | 168490 | 983.37 | 883 | 858 | 170.5 |
| B | 3 | 64 | 20868 | 117.38 | 883 | 858 | 170.5 |
| B | 12 | 111 | 20639 | 116.04 | 883 | 858 | 170.5 |
| C | 14 | 238 | 133962 | 663.5 | 854 | 858 | 200.6 |
| C | 7 | 247 | 11268 | 51.89 | 854 | 858 | 200.6 |
| C | 13 | 61 | 5913 | 25.2 | 854 | 858 | 200.6 |
| D | 1 | 52 | 3953648 | 20301.47 | 803 | 779 | 194.7 |
| D | 9 | 1 | 51418 | 260.08 | 803 | 779 | 194.7 |
| D | 1 | 20 | 26168 | 130.39 | 803 | 779 | 194.7 |
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 |  |