Observation information
- date-obs: 2021-10-28
- time-obs: 23:17:06.740400000
- date-end: 2021-10-29
- time-end: 00:25:00.742000000
- obs_id: A11_007T06_9000004746
- exposure: 1384.92236812
- 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/AS1A11_007T06_9000004746_32903cztM0_level2.evt
| modeM0/AS1A11_007T06_9000004746_32903cztM0_level2_quad_clean.evt
|
| Size (bytes) | 266,751,360 | 33,180,480 |
| Size | 254.4 MB
| 31.6 MB
|
| Events in quadrant A | 1,168,438 | 214,575 |
| Events in quadrant B | 1,338,323 | 219,693 |
| Events in quadrant C | 1,325,756 | 215,813 |
| Events in quadrant D | 4,080,350 | 179,810 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 48 | 0 |
| B | 0 | 48 | 0 |
| C | 0 | 48 | 0 |
| D | 0 | 48 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5008 | 1 |
| B | 0 | 5380 | 1 |
| C | 0 | 5445 | 1 |
| D | 0 | 13842 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2424 | 12 | 0.495050% |
| B | 2424 | 45 | 1.856436% |
| C | 2424 | 55 | 2.268977% |
| D | 2424 | 582 | 24.009901% |
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 | 2424 | 2424 | 17 | 17 | 0.70% | 0.70% |  |
| B | 2424 | 2424 | 33 | 33 | 1.36% | 1.36% |  |
| C | 2424 | 2424 | 48 | 48 | 1.98% | 1.98% |  |
| D | 2424 | 2424 | 743 | 743 | 30.65% | 30.65% |  |
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 | 40713 | 685.9 | 288 | 284 | 58.9 |
| A | 14 | 63 | 6518 | 105.76 | 288 | 284 | 58.9 |
| A | 13 | 6 | 5073 | 81.25 | 288 | 284 | 58.9 |
| B | 5 | 172 | 82754 | 1479.76 | 292 | 285 | 55.7 |
| B | 15 | 201 | 44399 | 791.55 | 292 | 285 | 55.7 |
| B | 0 | 230 | 28878 | 513.05 | 292 | 285 | 55.7 |
| C | 0 | 10 | 173367 | 2621.66 | 283 | 286 | 66.0 |
| C | 14 | 67 | 31524 | 473.16 | 283 | 286 | 66.0 |
| C | 3 | 233 | 9307 | 136.64 | 283 | 286 | 66.0 |
| D | 12 | 227 | 1511943 | 22162.76 | 257 | 252 | 68.2 |
| D | 8 | 195 | 881318 | 12917.22 | 257 | 252 | 68.2 |
| D | 10 | 203 | 213288 | 3123.3 | 257 | 252 | 68.2 |
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 |  |