Observation information
- date-obs: 2023-12-07
- time-obs: 19:47:13.391500000
- date-end: 2023-12-07
- time-end: 21:56:38.387100000
- obs_id: A13_004T13_9000005988
- exposure: 6727.68682945
- 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_9000005988_44304cztM0_level2.fits
| modeM0/AS1A13_004T13_9000005988_44304cztM0_level2_quad_clean.evt
|
Size (bytes) | 613,437,120 | 119,257,920 |
Size | 585.0 MB
| 113.7 MB
|
Events in quadrant A | 5,195,005 | 833,302 |
Events in quadrant B | 5,631,994 | 755,259 |
Events in quadrant C | 3,624,304 | 819,932 |
Events in quadrant D | 7,662,391 | 669,398 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21511 | 2 |
B | 0 | 22001 | 2 |
C | 0 | 16381 | 2 |
D | 0 | 28091 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 156 | 0 |
B | 0 | 156 | 0 |
C | 0 | 156 | 0 |
D | 0 | 156 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1 | 0 |
B | 0 | 1 | 0 |
C | 0 | 1 | 0 |
D | 0 | 1 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7655 | 92 | 1.201829% |
B | 7655 | 899 | 11.743958% |
C | 7656 | 31 | 0.404911% |
D | 7656 | 1110 | 14.498433% |
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 | 7765 | 7657 | 7 | 7 | 0.09% | 0.09% |  |
B | 7765 | 7657 | 616 | 616 | 7.93% | 8.04% |  |
C | 7766 | 7658 | 12 | 12 | 0.15% | 0.16% |  |
D | 7766 | 7658 | 944 | 944 | 12.16% | 12.33% |  |
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 | 1773468 | 9779.39 | 868 | 847 | 181.3 |
A | 4 | 0 | 21376 | 113.26 | 868 | 847 | 181.3 |
A | 7 | 3 | 19845 | 104.81 | 868 | 847 | 181.3 |
B | 5 | 172 | 1529674 | 9617.75 | 808 | 784 | 159.0 |
B | 0 | 219 | 310509 | 1948.38 | 808 | 784 | 159.0 |
B | 3 | 112 | 129047 | 806.86 | 808 | 784 | 159.0 |
C | 14 | 254 | 113856 | 562.3 | 855 | 861 | 201.0 |
C | 15 | 208 | 54416 | 266.51 | 855 | 861 | 201.0 |
C | 9 | 54 | 51613 | 252.56 | 855 | 861 | 201.0 |
D | 13 | 249 | 1829067 | 8870.45 | 812 | 785 | 206.1 |
D | 5 | 222 | 1275519 | 6184.75 | 812 | 785 | 206.1 |
D | 1 | 52 | 594347 | 2879.84 | 812 | 785 | 206.1 |
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 |  |