Observation information
- date-obs: 2024-09-21
- time-obs: 06:42:31.647800000
- date-end: 2024-09-21
- time-end: 08:47:26.641400000
- obs_id: A13_037T01_9000006436
- exposure: 6472.51956952
- 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_48581cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48581cztM0_level2_quad_clean.evt
|
Size (bytes) | 600,560,640 | 113,094,720 |
Size | 572.7 MB
| 107.9 MB
|
Events in quadrant A | 7,276,518 | 742,230 |
Events in quadrant B | 3,470,038 | 789,667 |
Events in quadrant C | 3,160,996 | 765,484 |
Events in quadrant D | 7,742,142 | 605,072 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27159 | 0 |
B | 0 | 15969 | 0 |
C | 0 | 15425 | 0 |
D | 0 | 28600 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 150 | 0 |
B | 0 | 150 | 0 |
C | 0 | 150 | 0 |
D | 0 | 150 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7495 | 307 | 4.096064% |
B | 7496 | 190 | 2.534685% |
C | 7496 | 20 | 0.266809% |
D | 7496 | 1111 | 14.821238% |
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 | 7495 | 7495 | 0 | 0 | 0.00% | 0.00% | |
B | 7496 | 7496 | 4 | 4 | 0.05% | 0.05% | |
C | 7496 | 7496 | 0 | 0 | 0.00% | 0.00% | |
D | 7496 | 7496 | 1014 | 1014 | 13.53% | 13.53% | |
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 | 4026313 | 23569.35 | 811 | 792 | 170.8 |
A | 0 | 31 | 104128 | 605.03 | 811 | 792 | 170.8 |
A | 13 | 254 | 13007 | 71.52 | 811 | 792 | 170.8 |
B | 12 | 16 | 187573 | 1154.87 | 815 | 785 | 161.7 |
B | 5 | 255 | 27018 | 162.19 | 815 | 785 | 161.7 |
B | 12 | 111 | 21755 | 129.65 | 815 | 785 | 161.7 |
C | 14 | 254 | 13635 | 67.32 | 805 | 810 | 190.5 |
C | 14 | 67 | 5978 | 27.13 | 805 | 810 | 190.5 |
C | 13 | 61 | 5348 | 23.82 | 805 | 810 | 190.5 |
D | 2 | 165 | 4686992 | 24124.93 | 767 | 742 | 194.2 |
D | 13 | 171 | 69491 | 353.92 | 767 | 742 | 194.2 |
D | 2 | 234 | 36314 | 183.13 | 767 | 742 | 194.2 |
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 |
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|
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 |
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|
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 | |