Observation information
- date-obs: 2025-08-14
- time-obs: 09:58:24.841100000
- date-end: 2025-08-14
- time-end: 12:13:57.819900000
- obs_id: A14_002T06_9000006496
- exposure: 5328.31134242
- 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_53439cztM0_level2.fits
| modeM0/AS1A14_002T06_9000006496_53439cztM0_level2_quad_clean.evt
|
| Size (bytes) | 695,136,960 | 93,723,840 |
| Size | 662.9 MB
| 89.4 MB
|
| Events in quadrant A | 6,605,904 | 577,348 |
| Events in quadrant B | 5,989,773 | 696,827 |
| Events in quadrant C | 8,126,648 | 502,825 |
| Events in quadrant D | 4,485,949 | 589,453 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24209 | 2 |
| B | 0 | 22344 | 2 |
| C | 0 | 28764 | 2 |
| D | 0 | 17848 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6758 | 1246 | 18.437408% |
| B | 6757 | 649 | 9.604854% |
| C | 6757 | 1597 | 23.634749% |
| D | 6757 | 259 | 3.833062% |
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 | 7808 | 6759 | 1056 | 1056 | 13.52% | 15.62% |  |
| B | 7807 | 6758 | 328 | 328 | 4.20% | 4.85% |  |
| C | 7807 | 6758 | 1367 | 1367 | 17.51% | 20.23% |  |
| D | 7807 | 6758 | 175 | 175 | 2.24% | 2.59% |  |
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 | 3 | 63 | 2094012 | 11576.93 | 727 | 709 | 180.8 |
| A | 15 | 174 | 1254284 | 6932.85 | 727 | 709 | 180.8 |
| A | 4 | 249 | 173677 | 956.59 | 727 | 709 | 180.8 |
| B | 10 | 254 | 872259 | 5463.96 | 741 | 716 | 159.5 |
| B | 4 | 171 | 838258 | 5250.8 | 741 | 716 | 159.5 |
| B | 4 | 206 | 422240 | 2642.66 | 741 | 716 | 159.5 |
| C | 1 | 241 | 1999657 | 11235.73 | 652 | 646 | 177.9 |
| C | 15 | 224 | 1604864 | 9016.74 | 652 | 646 | 177.9 |
| C | 12 | 252 | 692291 | 3887.49 | 652 | 646 | 177.9 |
| D | 13 | 153 | 377513 | 1792.37 | 741 | 710 | 210.2 |
| D | 15 | 171 | 274720 | 1303.41 | 741 | 710 | 210.2 |
| D | 0 | 18 | 256863 | 1218.47 | 741 | 710 | 210.2 |
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 |  |