Observation information
- date-obs: 2024-01-07
- time-obs: 23:35:57.368600000
- date-end: 2024-01-08
- time-end: 01:52:14.358300000
- obs_id: A13_004T12_9000006020
- exposure: 5349.58614546
- sourceid: M31 Field 24
- observer: dleahy
- ra_pnt: 12.33333
- dec_pnt: 42.14722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_004T12_9000006020_44766cztM0_level2.fits
| modeM0/AS1A13_004T12_9000006020_44766cztM0_level2_quad_clean.evt
|
Size (bytes) | 652,720,320 | 105,203,520 |
Size | 622.5 MB
| 100.3 MB
|
Events in quadrant A | 10,024,215 | 590,897 |
Events in quadrant B | 3,740,118 | 771,128 |
Events in quadrant C | 3,222,838 | 748,444 |
Events in quadrant D | 6,639,250 | 594,305 |
Level1 data integrity
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 | 34684 | 2 |
B | 0 | 15834 | 3 |
C | 0 | 14607 | 2 |
D | 0 | 24560 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6905 | 1856 | 26.879073% |
B | 6904 | 133 | 1.926419% |
C | 6904 | 53 | 0.767671% |
D | 6904 | 1063 | 15.396871% |
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 | 7875 | 6905 | 1475 | 1475 | 18.73% | 21.36% |  |
B | 7874 | 6905 | 46 | 46 | 0.58% | 0.67% |  |
C | 7874 | 6905 | 32 | 32 | 0.41% | 0.46% |  |
D | 7874 | 6904 | 798 | 798 | 10.13% | 11.56% |  |
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 | 15 | 223 | 5368779 | 37660.45 | 691 | 675 | 142.5 |
A | 10 | 83 | 1964747 | 13779.14 | 691 | 675 | 142.5 |
A | 13 | 248 | 14301 | 95.59 | 691 | 675 | 142.5 |
B | 0 | 189 | 481086 | 3170.45 | 765 | 741 | 151.5 |
B | 5 | 255 | 71720 | 468.49 | 765 | 741 | 151.5 |
B | 0 | 219 | 45107 | 292.83 | 765 | 741 | 151.5 |
C | 14 | 254 | 171537 | 958.72 | 759 | 764 | 178.1 |
C | 1 | 3 | 66692 | 370.12 | 759 | 764 | 178.1 |
C | 12 | 250 | 7539 | 38.03 | 759 | 764 | 178.1 |
D | 1 | 52 | 2432708 | 13930.22 | 693 | 672 | 174.6 |
D | 7 | 38 | 379653 | 2170.73 | 693 | 672 | 174.6 |
D | 2 | 249 | 296351 | 1693.59 | 693 | 672 | 174.6 |
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 |  |