Observation information
- date-obs: 2017-11-13
- time-obs: 13:51:34.772400000
- date-end: 2017-11-13
- time-end: 16:07:52.776900000
- obs_id: A04_021T05_9000001686
- exposure: 5186.46274794
- sourceid: M31 Field No. 6
- observer: dleahy
- ra_pnt: 10.85308
- dec_pnt: 40.85233
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_021T05_9000001686_11508cztM0_level2.evt
| modeM0/AS1A04_021T05_9000001686_11508cztM0_level2_quad_clean.evt
|
| Size (bytes) | 598,032,000 | 108,774,720 |
| Size | 570.3 MB
| 103.7 MB
|
| Events in quadrant A | 5,174,182 | 694,379 |
| Events in quadrant B | 4,742,551 | 701,393 |
| Events in quadrant C | 3,176,447 | 743,042 |
| Events in quadrant D | 4,572,922 | 696,645 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19878 | 3 |
| B | 0 | 18384 | 2 |
| C | 0 | 13650 | 2 |
| D | 0 | 17907 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6583 | 468 | 7.109221% |
| B | 6583 | 466 | 7.078839% |
| C | 6583 | 72 | 1.093726% |
| D | 6583 | 391 | 5.939541% |
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 | 7764 | 6585 | 211 | 211 | 2.72% | 3.20% |  |
| B | 7764 | 6585 | 215 | 215 | 2.77% | 3.26% |  |
| C | 7764 | 6585 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7764 | 6585 | 201 | 201 | 2.59% | 3.05% |  |
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 | 5 | 1835689 | 11266.78 | 816 | 799 | 162.9 |
| A | 14 | 238 | 45539 | 274.72 | 816 | 799 | 162.9 |
| A | 9 | 143 | 29265 | 174.79 | 816 | 799 | 162.9 |
| B | 4 | 239 | 1008774 | 6622.84 | 807 | 788 | 152.2 |
| B | 11 | 51 | 209333 | 1370.22 | 807 | 788 | 152.2 |
| B | 3 | 64 | 201195 | 1316.75 | 807 | 788 | 152.2 |
| C | 14 | 234 | 6605 | 30.72 | 813 | 818 | 188.4 |
| C | 13 | 61 | 6010 | 27.56 | 813 | 818 | 188.4 |
| C | 3 | 202 | 2126 | 6.94 | 813 | 818 | 188.4 |
| D | 10 | 253 | 520139 | 2738.89 | 798 | 777 | 189.6 |
| D | 1 | 52 | 263546 | 1385.73 | 798 | 777 | 189.6 |
| D | 2 | 120 | 236441 | 1242.79 | 798 | 777 | 189.6 |
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 |  |