Observation information
- date-obs: 2024-09-20
- time-obs: 18:22:19.687400000
- date-end: 2024-09-20
- time-end: 20:40:47.679900000
- obs_id: A13_037T01_9000006436
- exposure: 6238.74728566
- 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_48573cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48573cztM0_level2_quad_clean.evt
|
Size (bytes) | 494,856,000 | 104,397,120 |
Size | 471.9 MB
| 99.6 MB
|
Events in quadrant A | 7,049,152 | 675,622 |
Events in quadrant B | 2,895,895 | 728,883 |
Events in quadrant C | 2,759,511 | 698,211 |
Events in quadrant D | 5,094,394 | 591,867 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25420 | 2 |
B | 0 | 13676 | 3 |
C | 0 | 13545 | 2 |
D | 0 | 20160 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 0 |
B | 0 | 17 | 0 |
C | 0 | 17 | 0 |
D | 0 | 17 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6689 | 278 | 4.156077% |
B | 6688 | 14 | 0.209330% |
C | 6688 | 10 | 0.149522% |
D | 6688 | 499 | 7.461124% |
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 | 7689 | 6690 | 119 | 119 | 1.55% | 1.78% | |
B | 7688 | 6689 | 1 | 1 | 0.01% | 0.01% | |
C | 7688 | 6689 | 0 | 0 | 0.00% | 0.00% | |
D | 7688 | 6689 | 399 | 399 | 5.19% | 5.97% | |
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 | 4154579 | 28460.92 | 697 | 684 | 146.0 |
A | 0 | 31 | 160849 | 1097.39 | 697 | 684 | 146.0 |
A | 13 | 248 | 37079 | 249.36 | 697 | 684 | 146.0 |
B | 5 | 255 | 49248 | 346.84 | 709 | 686 | 140.0 |
B | 0 | 183 | 21528 | 148.86 | 709 | 686 | 140.0 |
B | 12 | 111 | 17781 | 122.1 | 709 | 686 | 140.0 |
C | 12 | 250 | 9844 | 54.97 | 703 | 706 | 166.2 |
C | 3 | 233 | 8562 | 47.26 | 703 | 706 | 166.2 |
C | 13 | 61 | 4611 | 23.49 | 703 | 706 | 166.2 |
D | 2 | 165 | 2131036 | 12413.73 | 679 | 656 | 171.6 |
D | 13 | 171 | 245881 | 1428.92 | 679 | 656 | 171.6 |
D | 10 | 199 | 36258 | 207.45 | 679 | 656 | 171.6 |
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 | |