Observation information
- date-obs: 2024-05-18
- time-obs: 18:41:48.355700000
- date-end: 2024-05-18
- time-end: 19:00:59.354600000
- obs_id: A13_037T01_9000006256
- exposure: 1074.30944967
- 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_9000006256_46719cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46719cztM0_level2_quad_clean.evt
|
Size (bytes) | 101,712,960 | 21,173,760 |
Size | 97.0 MB
| 20.2 MB
|
Events in quadrant A | 1,360,578 | 145,190 |
Events in quadrant B | 871,749 | 143,810 |
Events in quadrant C | 756,106 | 135,955 |
Events in quadrant D | 684,526 | 129,045 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4851 | 0 |
B | 0 | 3350 | 0 |
C | 0 | 2966 | 0 |
D | 0 | 2752 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 24 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 1151 | 27 | 2.345786% |
B | 1152 | 75 | 6.510417% |
C | 1151 | 40 | 3.475239% |
D | 1151 | 14 | 1.216334% |
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 | 1151 | 1151 | 1 | 1 | 0.09% | 0.09% | |
B | 1152 | 1152 | 41 | 41 | 3.56% | 3.56% | |
C | 1151 | 1151 | 35 | 35 | 3.04% | 3.04% | |
D | 1151 | 1151 | 11 | 11 | 0.96% | 0.96% | |
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 | 752869 | 23318.65 | 146 | 143 | 32.3 |
A | 0 | 243 | 16245 | 498.82 | 146 | 143 | 32.3 |
A | 15 | 235 | 9629 | 293.87 | 146 | 143 | 32.3 |
B | 5 | 172 | 129225 | 4372.17 | 144 | 141 | 29.5 |
B | 4 | 171 | 104431 | 3532.38 | 144 | 141 | 29.5 |
B | 5 | 32 | 24747 | 833.42 | 144 | 141 | 29.5 |
C | 12 | 2 | 93623 | 2715.44 | 141 | 141 | 34.4 |
C | 5 | 250 | 79227 | 2297.27 | 141 | 141 | 34.4 |
C | 1 | 241 | 25351 | 732.29 | 141 | 141 | 34.4 |
D | 2 | 249 | 61573 | 1577.02 | 146 | 141 | 39.0 |
D | 1 | 52 | 31753 | 811.51 | 146 | 141 | 39.0 |
D | 12 | 233 | 23705 | 604.9 | 146 | 141 | 39.0 |
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. |
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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 |
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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 | |