Observation information
- date-obs: 2023-12-08
- time-obs: 04:05:02.373500000
- date-end: 2023-12-08
- time-end: 06:37:55.366800000
- obs_id: A13_004T13_9000005988
- exposure: 7484.01092124
- 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_44309cztM0_level2.fits
| modeM0/AS1A13_004T13_9000005988_44309cztM0_level2_quad_clean.evt
|
Size (bytes) | 506,707,200 | 124,064,640 |
Size | 483.2 MB
| 118.3 MB
|
Events in quadrant A | 5,407,779 | 821,150 |
Events in quadrant B | 4,174,542 | 840,272 |
Events in quadrant C | 3,886,690 | 808,177 |
Events in quadrant D | 4,683,245 | 744,857 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22468 | 3 |
B | 0 | 17642 | 3 |
C | 0 | 17051 | 3 |
D | 0 | 19434 | 3 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 162 | 0 |
B | 0 | 162 | 0 |
C | 0 | 162 | 0 |
D | 0 | 162 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7783 | 170 | 2.184248% |
B | 7783 | 190 | 2.441218% |
C | 7783 | 163 | 2.094308% |
D | 7783 | 255 | 3.276372% |
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 | 9173 | 7784 | 16 | 16 | 0.17% | 0.21% |  |
B | 9173 | 7784 | 41 | 41 | 0.45% | 0.53% |  |
C | 9173 | 7786 | 81 | 81 | 0.88% | 1.04% |  |
D | 9173 | 7785 | 156 | 156 | 1.70% | 2.00% |  |
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 | 10 | 83 | 1766546 | 9588.76 | 879 | 861 | 184.1 |
A | 7 | 3 | 98759 | 531.65 | 879 | 861 | 184.1 |
A | 10 | 248 | 62620 | 335.39 | 879 | 861 | 184.1 |
B | 5 | 172 | 201120 | 1134.71 | 879 | 851 | 176.5 |
B | 0 | 190 | 197451 | 1113.92 | 879 | 851 | 176.5 |
B | 5 | 255 | 109720 | 616.84 | 879 | 851 | 176.5 |
C | 14 | 254 | 465858 | 2273.04 | 865 | 869 | 204.6 |
C | 3 | 233 | 32914 | 156.65 | 865 | 869 | 204.6 |
C | 1 | 3 | 11208 | 50.54 | 865 | 869 | 204.6 |
D | 13 | 249 | 405169 | 1862.87 | 863 | 836 | 217.0 |
D | 13 | 171 | 320814 | 1474.22 | 863 | 836 | 217.0 |
D | 13 | 138 | 177045 | 811.84 | 863 | 836 | 217.0 |
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 |  |