Observation information
- date-obs: 2018-02-21
- time-obs: 02:03:13.737500000
- date-end: 2018-02-21
- time-end: 04:15:21.732400000
- obs_id: T02_004T01_9000001910
- exposure: 4792.85227752
- sourceid: Swift J1658.2-4242
- observer: aruberi
- ra_pnt: 254.5526
- dec_pnt: -42.69847
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_004T01_9000001910_12981cztM0_level2.evt
| modeM0/AS1T02_004T01_9000001910_12981cztM0_level2_quad_clean.evt
|
| Size (bytes) | 573,652,800 | 105,359,040 |
| Size | 547.1 MB
| 100.5 MB
|
| Events in quadrant A | 3,530,354 | 683,484 |
| Events in quadrant B | 5,065,302 | 683,835 |
| Events in quadrant C | 3,307,934 | 703,505 |
| Events in quadrant D | 5,014,324 | 651,692 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14725 | 3 |
| B | 0 | 19424 | 2 |
| C | 0 | 14066 | 2 |
| D | 0 | 19197 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6713 | 49 | 0.729927% |
| B | 6713 | 614 | 9.146432% |
| C | 6713 | 34 | 0.506480% |
| D | 6713 | 448 | 6.673618% |
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 | 7929 | 6715 | 13 | 13 | 0.16% | 0.19% |  |
| B | 7929 | 6715 | 338 | 338 | 4.26% | 5.03% |  |
| C | 7929 | 6715 | 8 | 8 | 0.10% | 0.12% |  |
| D | 7929 | 6715 | 326 | 326 | 4.11% | 4.85% |  |
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 | 12 | 189 | 80464 | 476.45 | 829 | 812 | 167.2 |
| A | 15 | 223 | 79771 | 472.3 | 829 | 812 | 167.2 |
| A | 1 | 162 | 47668 | 280.27 | 829 | 812 | 167.2 |
| B | 0 | 85 | 1275049 | 8459.06 | 807 | 788 | 150.6 |
| B | 3 | 64 | 236990 | 1568.0 | 807 | 788 | 150.6 |
| B | 4 | 239 | 233903 | 1547.51 | 807 | 788 | 150.6 |
| C | 14 | 234 | 50611 | 259.19 | 834 | 842 | 192.0 |
| C | 13 | 61 | 6081 | 27.28 | 834 | 842 | 192.0 |
| C | 0 | 207 | 5279 | 23.1 | 834 | 842 | 192.0 |
| D | 1 | 52 | 1787653 | 9416.79 | 792 | 772 | 189.8 |
| D | 8 | 195 | 156600 | 821.21 | 792 | 772 | 189.8 |
| D | 2 | 33 | 59155 | 307.68 | 792 | 772 | 189.8 |
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 |  |