Observation information
- date-obs: 2022-08-26
- time-obs: 23:01:59.553400000
- date-end: 2022-08-27
- time-end: 01:22:29.555500000
- obs_id: T05_048T01_9000005318
- exposure: 2513.5906437
- 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/AS1T05_048T01_9000005318_37374cztM0_level2.evt
| modeM0/AS1T05_048T01_9000005318_37374cztM0_level2_quad_clean.evt
|
| Size (bytes) | 491,546,880 | 59,065,920 |
| Size | 468.8 MB
| 56.3 MB
|
| Events in quadrant A | 2,857,245 | 360,521 |
| Events in quadrant B | 3,254,992 | 368,560 |
| Events in quadrant C | 2,970,149 | 367,421 |
| Events in quadrant D | 5,435,743 | 311,160 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11729 | 3 |
| B | 0 | 13082 | 2 |
| C | 0 | 11899 | 2 |
| D | 0 | 19818 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112 | 0 |
| B | 0 | 112 | 0 |
| C | 0 | 112 | 0 |
| D | 0 | 112 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29 | 0 |
| B | 0 | 29 | 0 |
| C | 0 | 29 | 0 |
| D | 0 | 30 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5429 | 21 | 0.386812% |
| B | 5429 | 126 | 2.320869% |
| C | 5429 | 34 | 0.626266% |
| D | 5429 | 623 | 11.475410% |
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 | 7342 | 5430 | 14 | 14 | 0.19% | 0.26% |  |
| B | 7342 | 5430 | 97 | 97 | 1.32% | 1.79% |  |
| C | 7342 | 5430 | 24 | 24 | 0.33% | 0.44% |  |
| D | 7342 | 5429 | 758 | 758 | 10.32% | 13.96% |  |
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 | 10 | 83 | 278060 | 2139.5 | 647 | 637 | 129.7 |
| A | 7 | 16 | 28012 | 211.12 | 647 | 637 | 129.7 |
| A | 13 | 6 | 12409 | 90.79 | 647 | 637 | 129.7 |
| B | 5 | 255 | 415751 | 3344.02 | 650 | 634 | 124.1 |
| B | 5 | 172 | 92450 | 739.63 | 650 | 634 | 124.1 |
| B | 12 | 18 | 47692 | 379.08 | 650 | 634 | 124.1 |
| C | 15 | 214 | 231178 | 1557.54 | 639 | 645 | 148.0 |
| C | 0 | 10 | 95263 | 639.26 | 639 | 645 | 148.0 |
| C | 1 | 23 | 55860 | 373.05 | 639 | 645 | 148.0 |
| D | 1 | 20 | 1283714 | 8677.57 | 603 | 588 | 147.9 |
| D | 12 | 235 | 1015499 | 6863.67 | 603 | 588 | 147.9 |
| D | 12 | 227 | 480741 | 3247.19 | 603 | 588 | 147.9 |
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 |  |