Observation information
- date-obs: 2020-11-21
- time-obs: 21:00:53.953100000
- date-end: 2020-11-23
- time-end: 11:35:09.150600000
- obs_id: A10_002T05_9000004024
- exposure: 58137.172702
- sourceid: M31 Field No. 2
- observer: dleahy
- ra_pnt: 11.037
- dec_pnt: 41.55735
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_002T05_9000004024cztM0_level2.fits
| modeM0/AS1A10_002T05_9000004024cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,200,628,800 | 1,084,740,480 |
| Size | 1.1 GB
| 1.0 GB
|
| Events in quadrant A | 7,563,638 | 6,628,080 |
| Events in quadrant B | 7,123,016 | 6,363,821 |
| Events in quadrant C | 7,169,108 | 6,085,953 |
| Events in quadrant D | 6,164,682 | 5,434,992 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2474 | 0 |
| B | 0 | 2474 | 0 |
| C | 0 | 2474 | 0 |
| D | 0 | 2474 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 254503 | 0 |
| B | 0 | 273551 | 0 |
| C | 0 | 270344 | 0 |
| D | 0 | 358777 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 175 | 0 |
| B | 0 | 175 | 0 |
| C | 0 | 175 | 0 |
| D | 0 | 175 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 121687 | 1137 | 0.934364% |
| B | 121687 | 2018 | 1.658353% |
| C | 121687 | 2557 | 2.101293% |
| D | 121687 | 9400 | 7.724736% |
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 | 138857 | 121676 | 0 | 0 | 0.00% | 0.00% |  |
| B | 138857 | 121668 | 0 | 0 | 0.00% | 0.00% |  |
| C | 138857 | 121667 | 0 | 0 | 0.00% | 0.00% |  |
| D | 138857 | 121591 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 6208 | 9.1 | 1967 | 1847 | 479.2 |
| A | 7 | 110 | 5986 | 8.64 | 1967 | 1847 | 479.2 |
| A | 9 | 19 | 5762 | 8.17 | 1967 | 1847 | 479.2 |
| B | 2 | 9 | 5656 | 10.5 | 1883 | 1798 | 367.6 |
| B | 3 | 17 | 4703 | 7.9 | 1883 | 1798 | 367.6 |
| B | 5 | 128 | 4616 | 7.67 | 1883 | 1798 | 367.6 |
| C | 12 | 241 | 4956 | 6.66 | 1895 | 1771 | 478.4 |
| C | 3 | 187 | 4835 | 6.41 | 1895 | 1771 | 478.4 |
| C | 9 | 209 | 4789 | 6.31 | 1895 | 1771 | 478.4 |
| D | 6 | 231 | 4444 | 6.08 | 1763 | 1609 | 466.3 |
| D | 7 | 3 | 4364 | 5.91 | 1763 | 1609 | 466.3 |
| D | 15 | 46 | 4350 | 5.88 | 1763 | 1609 | 466.3 |
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 |  |