Observation information
- date-obs: 2021-10-25
- time-obs: 18:42:06.598100000
- date-end: 2021-10-25
- time-end: 21:03:33.598200000
- obs_id: A11_005T04_9000004742
- exposure: 3277.43309757
- 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_32856cztM0_level2.evt
| modeM0/AS1A11_005T04_9000004742_32856cztM0_level2_quad_clean.evt
|
| Size (bytes) | 508,717,440 | 72,316,800 |
| Size | 485.2 MB
| 69.0 MB
|
| Events in quadrant A | 2,572,649 | 469,426 |
| Events in quadrant B | 2,898,083 | 479,678 |
| Events in quadrant C | 2,911,104 | 475,779 |
| Events in quadrant D | 6,672,640 | 400,501 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32 | 0 |
| B | 0 | 32 | 0 |
| C | 0 | 32 | 0 |
| D | 0 | 33 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11013 | 3 |
| B | 0 | 12029 | 2 |
| C | 0 | 11921 | 2 |
| D | 0 | 23480 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5196 | 40 | 0.769823% |
| B | 5196 | 92 | 1.770593% |
| C | 5196 | 89 | 1.712856% |
| D | 5196 | 891 | 17.147806% |
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 | 7018 | 5197 | 33 | 33 | 0.47% | 0.63% |  |
| B | 7018 | 5197 | 56 | 56 | 0.80% | 1.08% |  |
| C | 7018 | 5197 | 52 | 52 | 0.74% | 1.00% |  |
| D | 7018 | 5197 | 842 | 842 | 12.00% | 16.20% |  |
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 | 9 | 143 | 180717 | 1444.13 | 615 | 602 | 124.7 |
| A | 13 | 6 | 11546 | 87.75 | 615 | 602 | 124.7 |
| A | 13 | 254 | 9382 | 70.4 | 615 | 602 | 124.7 |
| B | 5 | 172 | 297729 | 2576.56 | 618 | 605 | 115.3 |
| B | 0 | 219 | 61243 | 525.83 | 618 | 605 | 115.3 |
| B | 15 | 85 | 44080 | 377.0 | 618 | 605 | 115.3 |
| C | 3 | 233 | 197518 | 1417.5 | 607 | 613 | 138.9 |
| C | 0 | 10 | 155736 | 1116.72 | 607 | 613 | 138.9 |
| C | 1 | 23 | 95345 | 681.97 | 607 | 613 | 138.9 |
| D | 8 | 195 | 1852262 | 13239.83 | 565 | 552 | 139.9 |
| D | 12 | 227 | 1128638 | 8065.88 | 565 | 552 | 139.9 |
| D | 12 | 6 | 743713 | 5313.64 | 565 | 552 | 139.9 |
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 |  |