Observation information
- date-obs: 2018-06-21
- time-obs: 09:59:05.979900000
- date-end: 2018-06-21
- time-end: 12:03:02.976000000
- obs_id: A04_022T06_9000002182
- exposure: 3893.36913617
- 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_14762cztM0_level2.evt
| modeM0/AS1A04_022T06_9000002182_14762cztM0_level2_quad_clean.evt
|
| Size (bytes) | 477,299,520 | 92,116,800 |
| Size | 455.2 MB
| 87.8 MB
|
| Events in quadrant A | 3,331,023 | 603,391 |
| Events in quadrant B | 3,332,079 | 599,395 |
| Events in quadrant C | 3,755,265 | 581,537 |
| Events in quadrant D | 3,617,939 | 574,505 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13568 | 2 |
| B | 0 | 13511 | 1 |
| C | 0 | 14999 | 1 |
| D | 0 | 14531 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6177 | 88 | 1.424640% |
| B | 6177 | 88 | 1.424640% |
| C | 6177 | 85 | 1.376073% |
| D | 6177 | 106 | 1.716043% |
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 | 7438 | 6179 | 20 | 20 | 0.27% | 0.32% |  |
| B | 7438 | 6179 | 23 | 23 | 0.31% | 0.37% |  |
| C | 7438 | 6179 | 37 | 37 | 0.50% | 0.60% |  |
| D | 7438 | 6179 | 51 | 51 | 0.69% | 0.83% |  |
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 | 15 | 31 | 113847 | 686.56 | 816 | 799 | 164.7 |
| A | 12 | 189 | 61666 | 369.65 | 816 | 799 | 164.7 |
| A | 14 | 237 | 8884 | 49.1 | 816 | 799 | 164.7 |
| B | 0 | 205 | 73541 | 483.92 | 802 | 783 | 150.3 |
| B | 4 | 142 | 34431 | 223.79 | 802 | 783 | 150.3 |
| B | 0 | 229 | 23155 | 148.8 | 802 | 783 | 150.3 |
| C | 3 | 233 | 514619 | 2929.74 | 770 | 776 | 175.4 |
| C | 4 | 254 | 226224 | 1285.42 | 770 | 776 | 175.4 |
| C | 10 | 22 | 6079 | 30.24 | 770 | 776 | 175.4 |
| D | 5 | 222 | 484471 | 2513.98 | 782 | 762 | 192.4 |
| D | 9 | 1 | 50742 | 259.76 | 782 | 762 | 192.4 |
| D | 12 | 16 | 34926 | 177.56 | 782 | 762 | 192.4 |
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 |  |