Observation information
- date-obs: 2021-10-27
- time-obs: 02:39:45.657100000
- date-end: 2021-10-27
- time-end: 06:13:41.663300000
- obs_id: A11_005T04_9000004742
- exposure: 3799.21512555
- sourceid: M31 Field No. 8
- observer: dleahy
- ra_pnt: 11.36333
- dec_pnt: 41.88303
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_005T04_9000004742_32876cztM0_level2.evt
| modeM0/AS1A11_005T04_9000004742_32876cztM0_level2_quad_clean.evt
|
| Size (bytes) | 718,067,520 | 88,061,760 |
| Size | 684.8 MB
| 84.0 MB
|
| Events in quadrant A | 4,182,255 | 526,725 |
| Events in quadrant B | 5,574,821 | 526,847 |
| Events in quadrant C | 4,488,697 | 518,647 |
| Events in quadrant D | 6,899,506 | 477,077 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 39 | 0 |
| B | 0 | 39 | 0 |
| C | 0 | 39 | 0 |
| D | 0 | 39 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18002 | 2 |
| B | 0 | 22130 | 3 |
| C | 0 | 18947 | 1 |
| D | 0 | 26600 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 182 | 0 |
| B | 0 | 182 | 0 |
| C | 0 | 182 | 0 |
| D | 0 | 182 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8890 | 21 | 0.236220% |
| B | 8889 | 383 | 4.308696% |
| C | 8890 | 35 | 0.393701% |
| D | 8890 | 322 | 3.622047% |
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 | 12836 | 8892 | 6 | 6 | 0.05% | 0.07% |  |
| B | 12836 | 8892 | 232 | 232 | 1.81% | 2.61% |  |
| C | 12836 | 8892 | 27 | 27 | 0.21% | 0.30% |  |
| D | 12836 | 8892 | 242 | 242 | 1.89% | 2.72% |  |
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 | 63 | 28909 | 132.32 | 1060 | 1040 | 210.6 |
| A | 11 | 29 | 25994 | 118.48 | 1060 | 1040 | 210.6 |
| A | 13 | 6 | 16613 | 73.94 | 1060 | 1040 | 210.6 |
| B | 5 | 172 | 1112187 | 5628.94 | 1049 | 1027 | 197.4 |
| B | 0 | 197 | 100985 | 506.37 | 1049 | 1027 | 197.4 |
| B | 0 | 230 | 67022 | 334.32 | 1049 | 1027 | 197.4 |
| C | 3 | 233 | 247590 | 1057.39 | 1023 | 1032 | 233.2 |
| C | 0 | 10 | 129100 | 549.23 | 1023 | 1032 | 233.2 |
| C | 1 | 241 | 35767 | 148.96 | 1023 | 1032 | 233.2 |
| D | 8 | 195 | 810459 | 3232.53 | 1001 | 977 | 250.4 |
| D | 2 | 250 | 579165 | 2308.9 | 1001 | 977 | 250.4 |
| D | 12 | 218 | 392487 | 1563.43 | 1001 | 977 | 250.4 |
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 |  |