Observation information
- date-obs: 2024-09-23
- time-obs: 08:48:43.497300000
- date-end: 2024-09-23
- time-end: 11:14:53.491100000
- obs_id: A13_037T01_9000006436
- exposure: 7569.79596347
- 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_48612cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48612cztM0_level2_quad_clean.evt
|
Size (bytes) | 681,330,240 | 131,313,600 |
Size | 649.8 MB
| 125.2 MB
|
Events in quadrant A | 9,403,138 | 863,545 |
Events in quadrant B | 7,352,330 | 805,434 |
Events in quadrant C | 3,702,535 | 892,257 |
Events in quadrant D | 4,082,777 | 805,587 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 34163 | 0 |
B | 0 | 28073 | 0 |
C | 0 | 17810 | 0 |
D | 0 | 18743 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 176 | 0 |
B | 0 | 176 | 0 |
C | 0 | 176 | 0 |
D | 0 | 176 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8771 | 518 | 5.905826% |
B | 8771 | 1315 | 14.992589% |
C | 8771 | 4 | 0.045605% |
D | 8771 | 41 | 0.467450% |
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 | 8771 | 8771 | 321 | 321 | 3.66% | 3.66% | |
B | 8770 | 8770 | 638 | 638 | 7.27% | 7.27% | |
C | 8771 | 8771 | 0 | 0 | 0.00% | 0.00% | |
D | 8771 | 8771 | 31 | 31 | 0.35% | 0.35% | |
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 | 4611402 | 23607.03 | 934 | 913 | 195.3 |
A | 13 | 248 | 1172007 | 5996.34 | 934 | 913 | 195.3 |
A | 13 | 254 | 16240 | 78.48 | 934 | 913 | 195.3 |
B | 12 | 16 | 3694670 | 20769.77 | 903 | 872 | 177.8 |
B | 0 | 197 | 34608 | 189.69 | 903 | 872 | 177.8 |
B | 5 | 255 | 30274 | 165.32 | 903 | 872 | 177.8 |
C | 3 | 233 | 17495 | 74.78 | 939 | 941 | 221.4 |
C | 12 | 250 | 10476 | 43.07 | 939 | 941 | 221.4 |
C | 1 | 241 | 8216 | 32.86 | 939 | 941 | 221.4 |
D | 10 | 199 | 215308 | 925.57 | 926 | 894 | 231.7 |
D | 2 | 165 | 160768 | 690.13 | 926 | 894 | 231.7 |
D | 6 | 252 | 75190 | 320.72 | 926 | 894 | 231.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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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 |
|
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Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
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|
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 |
|
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Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
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|
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 | |