Observation information
- date-obs: 2023-12-10
- time-obs: 06:44:19.253900000
- date-end: 2023-12-10
- time-end: 09:04:37.248200000
- obs_id: A13_004T09_9000005992
- exposure: 6180.1387887
- sourceid: M31 Field 21
- observer: dleahy
- ra_pnt: 9.854167
- dec_pnt: 39.98889
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_004T09_9000005992_44341cztM0_level2.fits
| modeM0/AS1A13_004T09_9000005992_44341cztM0_level2_quad_clean.evt
|
| Size (bytes) | 443,966,400 | 110,191,680 |
| Size | 423.4 MB
| 105.1 MB
|
| Events in quadrant A | 4,903,778 | 733,726 |
| Events in quadrant B | 3,478,474 | 764,006 |
| Events in quadrant C | 3,060,547 | 734,248 |
| Events in quadrant D | 4,481,064 | 646,256 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20025 | 2 |
| B | 0 | 14558 | 2 |
| C | 0 | 13660 | 3 |
| D | 0 | 17667 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6568 | 219 | 3.334348% |
| B | 6568 | 124 | 1.887942% |
| C | 6567 | 62 | 0.944115% |
| D | 6567 | 403 | 6.136744% |
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 | 7623 | 6568 | 41 | 41 | 0.54% | 0.62% |  |
| B | 7623 | 6568 | 17 | 17 | 0.22% | 0.26% |  |
| C | 7622 | 6567 | 5 | 5 | 0.07% | 0.08% |  |
| D | 7622 | 6567 | 300 | 300 | 3.94% | 4.57% |  |
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 | 10 | 83 | 1637566 | 10262.33 | 767 | 751 | 159.5 |
| A | 13 | 248 | 205203 | 1281.85 | 767 | 751 | 159.5 |
| A | 15 | 223 | 43528 | 268.2 | 767 | 751 | 159.5 |
| B | 5 | 255 | 127694 | 841.51 | 766 | 744 | 150.9 |
| B | 0 | 219 | 97156 | 639.08 | 766 | 744 | 150.9 |
| B | 0 | 199 | 77041 | 505.75 | 766 | 744 | 150.9 |
| C | 14 | 254 | 89564 | 501.38 | 753 | 756 | 177.1 |
| C | 1 | 3 | 14311 | 76.52 | 753 | 756 | 177.1 |
| C | 14 | 96 | 9764 | 50.85 | 753 | 756 | 177.1 |
| D | 13 | 249 | 1026849 | 5456.37 | 740 | 717 | 188.1 |
| D | 2 | 153 | 150364 | 795.74 | 740 | 717 | 188.1 |
| D | 5 | 33 | 93765 | 494.77 | 740 | 717 | 188.1 |
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 |  |