Observation information
- date-obs: 2022-05-16
- time-obs: 19:13:37.904400000
- date-end: 2022-05-16
- time-end: 21:42:32.901100000
- obs_id: A11_080T01_9000005146
- exposure: 4410.01912341
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_080T01_9000005146_35861cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35861cztM0_level2_quad_clean.evt
|
Size (bytes) | 723,271,680 | 96,629,760 |
Size | 689.8 MB
| 92.2 MB
|
Events in quadrant A | 10,391,571 | 479,450 |
Events in quadrant B | 3,639,205 | 680,676 |
Events in quadrant C | 3,546,195 | 679,152 |
Events in quadrant D | 3,903,992 | 648,939 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26 | 0 |
B | 0 | 26 | 0 |
C | 0 | 26 | 0 |
D | 0 | 26 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 34989 | 3 |
B | 0 | 14703 | 2 |
C | 0 | 14207 | 2 |
D | 0 | 15650 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6248 | 3142 | 50.288092% |
B | 6248 | 165 | 2.640845% |
C | 6248 | 107 | 1.712548% |
D | 6248 | 102 | 1.632522% |
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 | 8935 | 6250 | 2971 | 2971 | 33.25% | 47.54% | |
B | 8935 | 6250 | 92 | 92 | 1.03% | 1.47% | |
C | 8935 | 6250 | 73 | 73 | 0.82% | 1.17% | |
D | 8935 | 6250 | 79 | 79 | 0.88% | 1.26% | |
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 | 169 | 7854963 | 62036.19 | 610 | 598 | 126.6 |
A | 10 | 83 | 137975 | 1085.05 | 610 | 598 | 126.6 |
A | 7 | 48 | 31598 | 244.85 | 610 | 598 | 126.6 |
B | 5 | 172 | 386572 | 2756.3 | 735 | 720 | 140.0 |
B | 0 | 213 | 243955 | 1737.53 | 735 | 720 | 140.0 |
B | 4 | 232 | 37300 | 261.31 | 735 | 720 | 140.0 |
C | 1 | 23 | 260902 | 1538.68 | 724 | 731 | 169.1 |
C | 15 | 214 | 258502 | 1524.49 | 724 | 731 | 169.1 |
C | 0 | 10 | 177675 | 1046.47 | 724 | 731 | 169.1 |
D | 13 | 249 | 347651 | 1960.96 | 724 | 708 | 176.9 |
D | 8 | 195 | 330538 | 1864.23 | 724 | 708 | 176.9 |
D | 10 | 118 | 173943 | 979.14 | 724 | 708 | 176.9 |
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 |
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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 | |