Observation information
- date-obs: 2024-05-01
- time-obs: 02:22:32.362100000
- date-end: 2024-05-01
- time-end: 04:34:45.354900000
- obs_id: A13_037T01_9000006212
- exposure: 6112.76705486
- 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_9000006212_46458cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006212_46458cztM0_level2_quad_clean.evt
|
Size (bytes) | 492,059,520 | 108,745,920 |
Size | 469.3 MB
| 103.7 MB
|
Events in quadrant A | 6,271,515 | 727,660 |
Events in quadrant B | 3,442,156 | 764,510 |
Events in quadrant C | 3,277,200 | 716,888 |
Events in quadrant D | 4,716,321 | 627,843 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23060 | 2 |
B | 0 | 14622 | 2 |
C | 0 | 14366 | 2 |
D | 0 | 18728 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6538 | 230 | 3.517895% |
B | 6538 | 73 | 1.116549% |
C | 6538 | 133 | 2.034261% |
D | 6538 | 454 | 6.944020% |
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 | 7683 | 6539 | 47 | 47 | 0.61% | 0.72% | |
B | 7683 | 6539 | 17 | 17 | 0.22% | 0.26% | |
C | 7683 | 6538 | 100 | 100 | 1.30% | 1.53% | |
D | 7683 | 6539 | 375 | 375 | 4.88% | 5.73% | |
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 | 3334498 | 22034.37 | 734 | 719 | 151.3 |
A | 2 | 79 | 38365 | 248.82 | 734 | 719 | 151.3 |
A | 13 | 254 | 12495 | 77.83 | 734 | 719 | 151.3 |
B | 0 | 190 | 114352 | 777.01 | 744 | 723 | 146.2 |
B | 10 | 128 | 69338 | 469.2 | 744 | 723 | 146.2 |
B | 5 | 172 | 66344 | 448.72 | 744 | 723 | 146.2 |
C | 9 | 54 | 321317 | 1904.69 | 722 | 725 | 168.3 |
C | 3 | 233 | 69922 | 411.11 | 722 | 725 | 168.3 |
C | 12 | 249 | 35580 | 207.08 | 722 | 725 | 168.3 |
D | 1 | 52 | 862810 | 4921.43 | 694 | 670 | 175.2 |
D | 2 | 249 | 783183 | 4466.89 | 694 | 670 | 175.2 |
D | 12 | 233 | 143314 | 814.27 | 694 | 670 | 175.2 |
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 | |