Observation information
- date-obs: 2024-01-06
- time-obs: 04:05:57.560900000
- date-end: 2024-01-06
- time-end: 06:21:17.552400000
- obs_id: A13_004T11_9000006018
- exposure: 7231.73607486
- sourceid: M31 Field 23
- observer: dleahy
- ra_pnt: 12.09167
- dec_pnt: 42.49445
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_004T11_9000006018_44739cztM0_level2.fits
| modeM0/AS1A13_004T11_9000006018_44739cztM0_level2_quad_clean.evt
|
| Size (bytes) | 587,813,760 | 123,655,680 |
| Size | 560.6 MB
| 117.9 MB
|
| Events in quadrant A | 5,666,384 | 826,297 |
| Events in quadrant B | 4,618,804 | 818,400 |
| Events in quadrant C | 3,777,358 | 837,195 |
| Events in quadrant D | 7,080,309 | 709,847 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 160 | 0 |
| B | 0 | 160 | 0 |
| C | 0 | 160 | 0 |
| D | 0 | 160 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23861 | 1 |
| B | 0 | 19384 | 1 |
| C | 0 | 17033 | 1 |
| D | 0 | 26537 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7940 | 252 | 3.173804% |
| B | 7940 | 566 | 7.128463% |
| C | 7940 | 78 | 0.982368% |
| D | 7940 | 905 | 11.397985% |
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 | 7940 | 7940 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7940 | 7940 | 211 | 211 | 2.66% | 2.66% |  |
| C | 7940 | 7940 | 9 | 9 | 0.11% | 0.11% |  |
| D | 7940 | 7940 | 655 | 655 | 8.25% | 8.25% |  |
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 | 2130447 | 11522.29 | 892 | 869 | 184.8 |
| A | 13 | 248 | 28048 | 147.05 | 892 | 869 | 184.8 |
| A | 15 | 223 | 22807 | 118.7 | 892 | 869 | 184.8 |
| B | 0 | 189 | 799807 | 4577.16 | 881 | 851 | 174.6 |
| B | 5 | 255 | 111932 | 636.37 | 881 | 851 | 174.6 |
| B | 0 | 190 | 82652 | 468.63 | 881 | 851 | 174.6 |
| C | 15 | 208 | 192971 | 922.09 | 887 | 888 | 208.3 |
| C | 14 | 254 | 71715 | 340.0 | 887 | 888 | 208.3 |
| C | 5 | 128 | 16214 | 73.57 | 887 | 888 | 208.3 |
| D | 1 | 52 | 1800094 | 8549.16 | 844 | 817 | 210.5 |
| D | 8 | 129 | 1147107 | 5446.53 | 844 | 817 | 210.5 |
| D | 13 | 249 | 442464 | 2098.46 | 844 | 817 | 210.5 |
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 |  |