Observation information
- date-obs: 2018-06-21
- time-obs: 04:53:49.993000000
- date-end: 2018-06-21
- time-end: 06:52:43.987100000
- obs_id: A04_022T06_9000002182
- exposure: 4215.71909517
- sourceid: M31 Field No. 12
- observer: dleahy
- ra_pnt: 11.92225
- dec_pnt: 41.85848
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_022T06_9000002182_14758cztM0_level2.evt
| modeM0/AS1A04_022T06_9000002182_14758cztM0_level2_quad_clean.evt
|
| Size (bytes) | 632,776,320 | 81,414,720 |
| Size | 603.5 MB
| 77.6 MB
|
| Events in quadrant A | 9,481,699 | 480,367 |
| Events in quadrant B | 3,329,146 | 524,676 |
| Events in quadrant C | 3,207,496 | 518,860 |
| Events in quadrant D | 2,724,376 | 506,474 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32525 | 2 |
| B | 0 | 14041 | 1 |
| C | 0 | 13253 | 3 |
| D | 0 | 12696 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6229 | 1366 | 21.929684% |
| B | 6229 | 140 | 2.247552% |
| C | 6228 | 20 | 0.321130% |
| D | 6229 | 15 | 0.240809% |
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 | 7135 | 6231 | 1208 | 1208 | 16.93% | 19.39% |  |
| B | 7135 | 6231 | 94 | 94 | 1.32% | 1.51% |  |
| C | 7135 | 6231 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7134 | 6230 | 4 | 4 | 0.06% | 0.06% |  |
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 | 8 | 15 | 6673992 | 47485.2 | 689 | 673 | 140.5 |
| A | 12 | 189 | 107741 | 761.86 | 689 | 673 | 140.5 |
| A | 0 | 23 | 42842 | 300.06 | 689 | 673 | 140.5 |
| B | 10 | 16 | 318487 | 2295.49 | 715 | 697 | 138.4 |
| B | 4 | 142 | 72397 | 517.91 | 715 | 697 | 138.4 |
| B | 10 | 247 | 68782 | 491.8 | 715 | 697 | 138.4 |
| C | 3 | 233 | 425871 | 2621.6 | 696 | 698 | 162.2 |
| C | 4 | 254 | 62782 | 382.81 | 696 | 698 | 162.2 |
| C | 13 | 61 | 5080 | 27.02 | 696 | 698 | 162.2 |
| D | 12 | 16 | 32655 | 186.97 | 697 | 675 | 171.0 |
| D | 2 | 234 | 28095 | 160.31 | 697 | 675 | 171.0 |
| D | 2 | 152 | 18910 | 106.61 | 697 | 675 | 171.0 |
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 |  |