Observation information
- date-obs: 2024-09-21
- time-obs: 08:14:54.642800000
- date-end: 2024-09-21
- time-end: 10:35:50.636000000
- obs_id: A13_037T01_9000006436
- exposure: 6717.99752241
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000006436_48582cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48582cztM0_level2_quad_clean.evt
|
Size (bytes) | 716,425,920 | 125,092,800 |
Size | 683.2 MB
| 119.3 MB
|
Events in quadrant A | 8,168,439 | 840,608 |
Events in quadrant B | 4,426,420 | 873,371 |
Events in quadrant C | 3,590,602 | 864,720 |
Events in quadrant D | 9,679,455 | 621,107 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30604 | 0 |
B | 0 | 19324 | 1 |
C | 0 | 17373 | 0 |
D | 0 | 34694 | 0 |
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 | 8456 | 359 | 4.245506% |
B | 8456 | 372 | 4.399243% |
C | 8456 | 21 | 0.248344% |
D | 8456 | 1897 | 22.433775% |
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 | 8456 | 8456 | 0 | 0 | 0.00% | 0.00% | |
B | 8456 | 8456 | 110 | 110 | 1.30% | 1.30% | |
C | 8456 | 8456 | 0 | 0 | 0.00% | 0.00% | |
D | 8456 | 8456 | 1685 | 1685 | 19.93% | 19.93% | |
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 | 4522952 | 23252.5 | 928 | 906 | 194.5 |
A | 0 | 31 | 48117 | 242.76 | 928 | 906 | 194.5 |
A | 13 | 254 | 14933 | 72.13 | 928 | 906 | 194.5 |
B | 12 | 16 | 658819 | 3546.96 | 927 | 896 | 185.5 |
B | 5 | 255 | 78144 | 416.46 | 927 | 896 | 185.5 |
B | 12 | 111 | 24430 | 126.88 | 927 | 896 | 185.5 |
C | 14 | 67 | 9183 | 38.08 | 918 | 918 | 217.0 |
C | 13 | 61 | 6135 | 24.04 | 918 | 918 | 217.0 |
C | 14 | 254 | 4643 | 17.16 | 918 | 918 | 217.0 |
D | 2 | 165 | 5836388 | 26843.42 | 858 | 827 | 217.4 |
D | 2 | 249 | 291297 | 1336.15 | 858 | 827 | 217.4 |
D | 13 | 171 | 198636 | 909.92 | 858 | 827 | 217.4 |
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 | |