Observation information
- date-obs: 2021-10-25
- time-obs: 20:33:46.598500000
- date-end: 2021-10-25
- time-end: 22:50:11.600700000
- obs_id: A11_005T04_9000004742
- exposure: 3159.19322444
- 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_32857cztM0_level2.evt
| modeM0/AS1A11_005T04_9000004742_32857cztM0_level2_quad_clean.evt
|
| Size (bytes) | 476,959,680 | 74,370,240 |
| Size | 454.9 MB
| 70.9 MB
|
| Events in quadrant A | 2,628,584 | 477,100 |
| Events in quadrant B | 3,022,938 | 492,975 |
| Events in quadrant C | 2,873,627 | 483,762 |
| Events in quadrant D | 5,567,137 | 433,944 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30 | 0 |
| B | 0 | 30 | 0 |
| C | 0 | 30 | 0 |
| D | 0 | 31 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11087 | 3 |
| B | 0 | 12203 | 2 |
| C | 0 | 11608 | 2 |
| D | 0 | 20238 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 0 |
| B | 0 | 104 | 0 |
| C | 0 | 104 | 0 |
| D | 0 | 104 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5204 | 46 | 0.883935% |
| B | 5204 | 130 | 2.498078% |
| C | 5204 | 87 | 1.671791% |
| D | 5204 | 557 | 10.703305% |
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 | 7145 | 5205 | 24 | 24 | 0.34% | 0.46% |  |
| B | 7145 | 5205 | 83 | 83 | 1.16% | 1.59% |  |
| C | 7145 | 5205 | 63 | 63 | 0.88% | 1.21% |  |
| D | 7145 | 5205 | 499 | 499 | 6.98% | 9.59% |  |
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 | 171603 | 1365.56 | 632 | 621 | 125.2 |
| A | 13 | 254 | 9416 | 70.24 | 632 | 621 | 125.2 |
| A | 13 | 6 | 9148 | 68.1 | 632 | 621 | 125.2 |
| B | 5 | 172 | 419083 | 3531.67 | 638 | 624 | 118.5 |
| B | 0 | 230 | 36395 | 301.9 | 638 | 624 | 118.5 |
| B | 0 | 199 | 21715 | 178.0 | 638 | 624 | 118.5 |
| C | 0 | 10 | 161261 | 1116.33 | 625 | 633 | 143.9 |
| C | 3 | 233 | 111101 | 767.73 | 625 | 633 | 143.9 |
| C | 14 | 67 | 78944 | 544.24 | 625 | 633 | 143.9 |
| D | 8 | 195 | 1243919 | 8442.34 | 587 | 574 | 147.3 |
| D | 12 | 6 | 870975 | 5910.04 | 587 | 574 | 147.3 |
| D | 12 | 227 | 391541 | 2654.67 | 587 | 574 | 147.3 |
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 |  |