Observation information
- date-obs: 2019-08-15
- time-obs: 04:11:27.883500000
- date-end: 2019-08-15
- time-end: 06:28:07.883000000
- obs_id: T03_131T01_9000003090
- exposure: 2787.21946894
- 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_20975cztM0_level2.evt
| modeM0/AS1T03_131T01_9000003090_20975cztM0_level2_quad_clean.evt
|
| Size (bytes) | 482,483,520 | 67,731,840 |
| Size | 460.1 MB
| 64.6 MB
|
| Events in quadrant A | 3,205,540 | 406,694 |
| Events in quadrant B | 3,529,083 | 410,460 |
| Events in quadrant C | 3,304,102 | 407,161 |
| Events in quadrant D | 4,141,962 | 383,078 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | -1 | -1 |
| D | 0 | -1 | -1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13206 | 2 |
| B | 0 | 14137 | 2 |
| C | 0 | 13370 | 2 |
| D | 0 | 16467 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6354 | 57 | 0.897073% |
| B | 6354 | 148 | 2.329241% |
| C | 6353 | 123 | 1.936093% |
| D | 6353 | 168 | 2.644420% |
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 | 7584 | 6355 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7584 | 6355 | 40 | 40 | 0.53% | 0.63% |  |
| C | 7583 | 6354 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7583 | 6354 | 93 | 93 | 1.23% | 1.46% |  |
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 | 0 | 226 | 7263 | 38.44 | 834 | 818 | 167.7 |
| A | 3 | 137 | 6448 | 33.58 | 834 | 818 | 167.7 |
| A | 12 | 194 | 5822 | 29.84 | 834 | 818 | 167.7 |
| B | 7 | 220 | 203421 | 1309.7 | 834 | 816 | 154.7 |
| B | 12 | 111 | 18366 | 113.45 | 834 | 816 | 154.7 |
| B | 3 | 64 | 17867 | 110.22 | 834 | 816 | 154.7 |
| C | 14 | 238 | 128941 | 687.41 | 812 | 821 | 186.4 |
| C | 7 | 247 | 5770 | 26.55 | 812 | 821 | 186.4 |
| C | 13 | 61 | 5679 | 26.06 | 812 | 821 | 186.4 |
| D | 1 | 20 | 545693 | 2772.42 | 811 | 789 | 196.5 |
| D | 9 | 1 | 313634 | 1591.72 | 811 | 789 | 196.5 |
| D | 1 | 52 | 148254 | 750.29 | 811 | 789 | 196.5 |
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 |  |