Observation information
- date-obs: 2024-09-17
- time-obs: 14:09:20.900600000
- date-end: 2024-09-17
- time-end: 19:42:21.888000000
- obs_id: A13_037T01_9000006436
- exposure: 17290.3665988
- 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_48528cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48528cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,362,265,920 | 283,409,280 |
Size | 1.3 GB
| 270.3 MB
|
Events in quadrant A | 19,019,819 | 1,904,505 |
Events in quadrant B | 11,339,028 | 1,822,534 |
Events in quadrant C | 7,732,557 | 1,898,876 |
Events in quadrant D | 10,904,126 | 1,678,399 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 70537 | 590 |
B | 0 | 47189 | 262 |
C | 0 | 38139 | 244 |
D | 0 | 47171 | 599 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 378 | 2 |
B | 0 | 377 | 1 |
C | 0 | 378 | 2 |
D | 0 | 378 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18509 | 726 | 3.922416% |
B | 18533 | 1230 | 6.636810% |
C | 18535 | 133 | 0.717561% |
D | 18501 | 874 | 4.724069% |
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 | 19869 | 18550 | 86 | 86 | 0.43% | 0.46% | |
B | 19901 | 18559 | 644 | 644 | 3.24% | 3.47% | |
C | 19929 | 18555 | 1 | 1 | 0.01% | 0.01% | |
D | 19896 | 18544 | 572 | 572 | 2.87% | 3.08% | |
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 | 10663521 | 25790.82 | 1977 | 1938 | 413.4 |
A | 12 | 189 | 586376 | 1413.78 | 1977 | 1938 | 413.4 |
A | 7 | 3 | 84663 | 200.12 | 1977 | 1938 | 413.4 |
B | 12 | 16 | 2892198 | 7638.21 | 1933 | 1871 | 378.4 |
B | 5 | 255 | 333049 | 875.2 | 1933 | 1871 | 378.4 |
B | 5 | 171 | 128733 | 335.26 | 1933 | 1871 | 378.4 |
C | 14 | 254 | 29945 | 60.52 | 1964 | 1975 | 462.2 |
C | 3 | 233 | 23183 | 45.89 | 1964 | 1975 | 462.2 |
C | 14 | 67 | 20542 | 40.17 | 1964 | 1975 | 462.2 |
D | 2 | 165 | 2407972 | 4966.44 | 1938 | 1878 | 484.5 |
D | 2 | 249 | 599326 | 1233.2 | 1938 | 1878 | 484.5 |
D | 12 | 233 | 321728 | 660.2 | 1938 | 1878 | 484.5 |
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 |
|
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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 |
|
|
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 | |