Observation information
- date-obs: 2024-01-09
- time-obs: 03:17:31.241900000
- date-end: 2024-01-09
- time-end: 05:39:36.231600000
- obs_id: A13_004T13_9000006022
- exposure: 7356.6200887
- sourceid: M31 Field 25
- observer: dleahy
- ra_pnt: 11.54583
- dec_pnt: 42.53889
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_004T13_9000006022_44783cztM0_level2.fits
| modeM0/AS1A13_004T13_9000006022_44783cztM0_level2_quad_clean.evt
|
Size (bytes) | 650,396,160 | 127,696,320 |
Size | 620.3 MB
| 121.8 MB
|
Events in quadrant A | 7,844,996 | 795,281 |
Events in quadrant B | 4,163,098 | 888,362 |
Events in quadrant C | 3,947,031 | 880,305 |
Events in quadrant D | 7,470,495 | 720,399 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2 | 0 |
B | 0 | 2 | 0 |
C | 0 | 2 | 0 |
D | 0 | 2 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29972 | 1 |
B | 0 | 18353 | 1 |
C | 0 | 17919 | 1 |
D | 0 | 28099 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 170 | 0 |
B | 0 | 170 | 0 |
C | 0 | 170 | 0 |
D | 0 | 170 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8375 | 1012 | 12.083582% |
B | 8375 | 353 | 4.214925% |
C | 8376 | 137 | 1.635626% |
D | 8376 | 1126 | 13.443171% |
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 | 8525 | 8375 | 574 | 574 | 6.73% | 6.85% |  |
B | 8525 | 8376 | 24 | 24 | 0.28% | 0.29% |  |
C | 8526 | 8377 | 20 | 20 | 0.23% | 0.24% |  |
D | 8526 | 8377 | 896 | 896 | 10.51% | 10.70% |  |
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 | 2166113 | 11335.72 | 919 | 897 | 191.0 |
A | 15 | 223 | 1986710 | 10396.48 | 919 | 897 | 191.0 |
A | 13 | 248 | 134193 | 697.85 | 919 | 897 | 191.0 |
B | 5 | 255 | 144015 | 740.53 | 960 | 927 | 193.2 |
B | 5 | 172 | 68335 | 348.86 | 960 | 927 | 193.2 |
B | 4 | 158 | 49678 | 252.3 | 960 | 927 | 193.2 |
C | 14 | 254 | 131806 | 584.65 | 955 | 956 | 223.8 |
C | 1 | 3 | 36639 | 159.44 | 955 | 956 | 223.8 |
C | 2 | 14 | 15465 | 64.83 | 955 | 956 | 223.8 |
D | 1 | 52 | 1980961 | 8934.74 | 887 | 858 | 221.6 |
D | 13 | 187 | 564233 | 2542.1 | 887 | 858 | 221.6 |
D | 5 | 235 | 496613 | 2236.98 | 887 | 858 | 221.6 |
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 |  |