Observation information
- date-obs: 2024-09-22
- time-obs: 20:37:41.534200000
- date-end: 2024-09-22
- time-end: 23:01:22.527200000
- obs_id: A13_037T01_9000006436
- exposure: 5884.84966362
- 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_48605cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48605cztM0_level2_quad_clean.evt
|
Size (bytes) | 445,507,200 | 102,703,680 |
Size | 424.9 MB
| 97.9 MB
|
Events in quadrant A | 6,524,300 | 671,021 |
Events in quadrant B | 3,883,710 | 691,220 |
Events in quadrant C | 2,681,478 | 691,366 |
Events in quadrant D | 2,913,085 | 617,157 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23498 | 2 |
B | 0 | 16113 | 2 |
C | 0 | 12810 | 3 |
D | 0 | 13328 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23 | 0 |
B | 0 | 23 | 0 |
C | 0 | 23 | 0 |
D | 0 | 23 | 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 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6291 | 266 | 4.228263% |
B | 6292 | 391 | 6.214240% |
C | 6291 | 31 | 0.492767% |
D | 6291 | 65 | 1.033222% |
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 | 8621 | 6293 | 139 | 139 | 1.61% | 2.21% | |
B | 8622 | 6294 | 221 | 221 | 2.56% | 3.51% | |
C | 8621 | 6293 | 3 | 3 | 0.03% | 0.05% | |
D | 8621 | 6293 | 29 | 29 | 0.34% | 0.46% | |
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 | 3885344 | 27599.65 | 673 | 659 | 140.8 |
A | 13 | 248 | 14858 | 100.88 | 673 | 659 | 140.8 |
A | 13 | 254 | 12065 | 81.04 | 673 | 659 | 140.8 |
B | 12 | 16 | 1155260 | 8818.33 | 668 | 646 | 130.9 |
B | 0 | 186 | 52955 | 399.51 | 668 | 646 | 130.9 |
B | 0 | 183 | 23117 | 171.62 | 668 | 646 | 130.9 |
C | 12 | 249 | 28510 | 173.87 | 678 | 682 | 160.0 |
C | 3 | 233 | 7712 | 43.92 | 678 | 682 | 160.0 |
C | 14 | 254 | 4727 | 25.27 | 678 | 682 | 160.0 |
D | 2 | 165 | 154040 | 924.17 | 666 | 646 | 166.0 |
D | 10 | 199 | 102946 | 616.34 | 666 | 646 | 166.0 |
D | 2 | 249 | 40710 | 241.38 | 666 | 646 | 166.0 |
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 | |