Observation information
- date-obs: 2025-08-16
- time-obs: 10:36:44.370600000
- date-end: 2025-08-16
- time-end: 12:48:57.348000000
- obs_id: A14_002T06_9000006496
- exposure: 3858.30384254
- 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/AS1A14_002T06_9000006496_53469cztM0_level2.fits
| modeM0/AS1A14_002T06_9000006496_53469cztM0_level2_quad_clean.evt
|
| Size (bytes) | 755,280,000 | 91,068,480 |
| Size | 720.3 MB
| 86.8 MB
|
| Events in quadrant A | 8,411,465 | 560,621 |
| Events in quadrant B | 3,663,382 | 747,557 |
| Events in quadrant C | 11,015,257 | 377,449 |
| Events in quadrant D | 4,350,033 | 605,896 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29613 | 2 |
| B | 0 | 15325 | 2 |
| C | 0 | 37244 | 5 |
| D | 0 | 17393 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6686 | 1713 | 25.620700% |
| B | 6686 | 201 | 3.006282% |
| C | 6685 | 3020 | 45.175767% |
| D | 6685 | 225 | 3.365744% |
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 | 7791 | 6686 | 1355 | 1355 | 17.39% | 20.27% |  |
| B | 7791 | 6686 | 40 | 40 | 0.51% | 0.60% |  |
| C | 7789 | 6684 | 2728 | 2728 | 35.02% | 40.81% |  |
| D | 7790 | 6685 | 122 | 122 | 1.57% | 1.82% |  |
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 | 3 | 62 | 2459937 | 14237.64 | 708 | 691 | 172.7 |
| A | 15 | 174 | 1767784 | 10230.46 | 708 | 691 | 172.7 |
| A | 3 | 63 | 1192856 | 6901.96 | 708 | 691 | 172.7 |
| B | 5 | 185 | 171751 | 1033.94 | 769 | 742 | 165.4 |
| B | 2 | 249 | 143556 | 863.47 | 769 | 742 | 165.4 |
| B | 4 | 81 | 84968 | 509.24 | 769 | 742 | 165.4 |
| C | 1 | 241 | 4344999 | 28532.54 | 560 | 555 | 152.3 |
| C | 15 | 224 | 2960236 | 19437.98 | 560 | 555 | 152.3 |
| C | 15 | 178 | 639150 | 4194.03 | 560 | 555 | 152.3 |
| D | 3 | 12 | 591901 | 2786.45 | 752 | 719 | 212.2 |
| D | 8 | 176 | 227619 | 1069.46 | 752 | 719 | 212.2 |
| D | 11 | 245 | 180263 | 846.25 | 752 | 719 | 212.2 |
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 |  |