Observation information
- date-obs: 2024-09-18
- time-obs: 04:00:07.865500000
- date-end: 2024-09-18
- time-end: 06:09:52.859000000
- obs_id: A13_037T01_9000006436
- exposure: 5173.12564224
- 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_48535cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48535cztM0_level2_quad_clean.evt
|
Size (bytes) | 568,238,400 | 102,191,040 |
Size | 541.9 MB
| 97.5 MB
|
Events in quadrant A | 6,932,282 | 695,712 |
Events in quadrant B | 3,241,967 | 734,564 |
Events in quadrant C | 2,835,457 | 708,220 |
Events in quadrant D | 7,500,006 | 484,285 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25467 | 1 |
B | 0 | 14493 | 2 |
C | 0 | 13809 | 1 |
D | 0 | 27478 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6760 | 205 | 3.032544% |
B | 6759 | 147 | 2.174878% |
C | 6760 | 43 | 0.636095% |
D | 6760 | 1749 | 25.872781% |
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 | 7785 | 6761 | 4 | 4 | 0.05% | 0.06% | |
B | 7784 | 6760 | 25 | 25 | 0.32% | 0.37% | |
C | 7785 | 6761 | 4 | 4 | 0.05% | 0.06% | |
D | 7785 | 6761 | 1457 | 1457 | 18.72% | 21.55% | |
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 | 3993133 | 26551.97 | 721 | 706 | 150.4 |
A | 12 | 189 | 128498 | 849.89 | 721 | 706 | 150.4 |
A | 13 | 248 | 15592 | 99.0 | 721 | 706 | 150.4 |
B | 0 | 183 | 187184 | 1300.46 | 728 | 703 | 143.4 |
B | 5 | 255 | 142964 | 992.08 | 728 | 703 | 143.4 |
B | 12 | 16 | 28291 | 192.39 | 728 | 703 | 143.4 |
C | 14 | 254 | 25055 | 143.84 | 718 | 720 | 169.2 |
C | 12 | 250 | 7872 | 42.27 | 718 | 720 | 169.2 |
C | 13 | 61 | 4768 | 23.93 | 718 | 720 | 169.2 |
D | 2 | 165 | 4841706 | 30571.04 | 633 | 615 | 158.4 |
D | 2 | 249 | 71794 | 449.49 | 633 | 615 | 158.4 |
D | 7 | 96 | 67595 | 422.97 | 633 | 615 | 158.4 |
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 |
|
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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 | |