Observation information
- date-obs: 2024-05-17
- time-obs: 21:35:51.424600000
- date-end: 2024-05-17
- time-end: 23:52:56.413900000
- obs_id: A13_037T01_9000006256
- exposure: 6081.80520505
- 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_46707cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46707cztM0_level2_quad_clean.evt
|
Size (bytes) | 472,049,280 | 108,936,000 |
Size | 450.2 MB
| 103.9 MB
|
Events in quadrant A | 6,400,972 | 709,047 |
Events in quadrant B | 3,513,614 | 754,463 |
Events in quadrant C | 3,081,760 | 729,370 |
Events in quadrant D | 3,976,091 | 655,650 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23323 | 2 |
B | 0 | 15017 | 2 |
C | 0 | 13761 | 2 |
D | 0 | 16429 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18 | 0 |
B | 0 | 18 | 0 |
C | 0 | 19 | 0 |
D | 0 | 19 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6457 | 348 | 5.389500% |
B | 6457 | 159 | 2.462444% |
C | 6457 | 51 | 0.789840% |
D | 6457 | 175 | 2.710237% |
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 | 7602 | 6458 | 82 | 82 | 1.08% | 1.27% | |
B | 7602 | 6458 | 19 | 19 | 0.25% | 0.29% | |
C | 7602 | 6458 | 24 | 24 | 0.32% | 0.37% | |
D | 7602 | 6458 | 98 | 98 | 1.29% | 1.52% | |
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 | 3430821 | 22675.87 | 728 | 714 | 151.3 |
A | 13 | 248 | 56466 | 368.57 | 728 | 714 | 151.3 |
A | 9 | 191 | 47395 | 308.6 | 728 | 714 | 151.3 |
B | 4 | 171 | 322188 | 2173.52 | 744 | 722 | 147.9 |
B | 0 | 190 | 59520 | 397.55 | 744 | 722 | 147.9 |
B | 3 | 112 | 45416 | 302.19 | 744 | 722 | 147.9 |
C | 12 | 2 | 101538 | 582.29 | 735 | 740 | 173.1 |
C | 1 | 3 | 78992 | 452.05 | 735 | 740 | 173.1 |
C | 14 | 254 | 18381 | 101.91 | 735 | 740 | 173.1 |
D | 1 | 52 | 624076 | 3402.47 | 725 | 702 | 183.2 |
D | 13 | 171 | 135787 | 737.31 | 725 | 702 | 183.2 |
D | 13 | 249 | 125313 | 680.15 | 725 | 702 | 183.2 |
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 |
|
|
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 | |