Observation information
- date-obs: 2021-11-14
- time-obs: 23:07:06.658700000
- date-end: 2021-11-15
- time-end: 11:44:47.648400000
- obs_id: A11_096T01_9000004766
- exposure: 15963.2441696
- sourceid: 4U 0836-429
- observer: duncan
- ra_pnt: 129.3458
- dec_pnt: -42.895
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_096T01_9000004766_33161cztM0_level2.evt
| modeM0/AS1A11_096T01_9000004766_33161cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,608,669,440 | 337,273,920 |
| Size | 2.4 GB
| 321.6 MB
|
| Events in quadrant A | 13,996,003 | 2,101,507 |
| Events in quadrant B | 20,433,814 | 2,092,504 |
| Events in quadrant C | 14,968,391 | 2,064,519 |
| Events in quadrant D | 27,629,109 | 1,936,298 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 598 | 0 |
| B | 0 | 598 | 0 |
| C | 0 | 598 | 0 |
| D | 0 | 598 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 60449 | 7 |
| B | 0 | 80004 | 6 |
| C | 0 | 63056 | 6 |
| D | 0 | 103133 | 6 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 88 | 0 |
| B | 0 | 88 | 0 |
| C | 0 | 88 | 0 |
| D | 0 | 89 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 29395 | 39 | 0.132676% |
| B | 29395 | 1858 | 6.320803% |
| C | 29395 | 274 | 0.932131% |
| D | 29395 | 1481 | 5.038272% |
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 | 44952 | 29401 | 1 | 1 | 0.00% | 0.00% |  |
| B | 44952 | 29401 | 981 | 981 | 2.18% | 3.34% |  |
| C | 44952 | 29401 | 211 | 211 | 0.47% | 0.72% |  |
| D | 44952 | 29401 | 1159 | 1159 | 2.58% | 3.94% |  |
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 | 14 | 254 | 128785 | 177.04 | 3569 | 3497 | 707.7 |
| A | 13 | 254 | 53947 | 71.29 | 3569 | 3497 | 707.7 |
| A | 13 | 6 | 42867 | 55.63 | 3569 | 3497 | 707.7 |
| B | 5 | 172 | 2735793 | 4216.74 | 3465 | 3386 | 648.0 |
| B | 0 | 219 | 1711996 | 2636.78 | 3465 | 3386 | 648.0 |
| B | 5 | 200 | 847748 | 1303.05 | 3465 | 3386 | 648.0 |
| C | 0 | 10 | 743774 | 934.73 | 3449 | 3478 | 792.0 |
| C | 1 | 241 | 320414 | 400.18 | 3449 | 3478 | 792.0 |
| C | 14 | 67 | 136252 | 167.65 | 3449 | 3478 | 792.0 |
| D | 8 | 195 | 6633775 | 7647.14 | 3406 | 3332 | 867.0 |
| D | 2 | 249 | 1667375 | 1919.2 | 3406 | 3332 | 867.0 |
| D | 2 | 250 | 1640205 | 1887.87 | 3406 | 3332 | 867.0 |
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 |  |