Observation information
- date-obs: 2024-09-18
- time-obs: 00:22:19.875700000
- date-end: 2024-09-18
- time-end: 02:36:27.869200000
- obs_id: A13_037T01_9000006436
- exposure: 4803.01430744
- 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_48533cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48533cztM0_level2_quad_clean.evt
|
Size (bytes) | 542,548,800 | 98,902,080 |
Size | 517.4 MB
| 94.3 MB
|
Events in quadrant A | 6,797,626 | 669,475 |
Events in quadrant B | 2,846,347 | 724,570 |
Events in quadrant C | 2,653,187 | 690,246 |
Events in quadrant D | 7,290,289 | 464,280 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24566 | 5 |
B | 0 | 13224 | 9 |
C | 0 | 12954 | 6 |
D | 0 | 26326 | 4 |
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 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6391 | 267 | 4.177750% |
B | 6389 | 27 | 0.422601% |
C | 6390 | 5 | 0.078247% |
D | 6391 | 1682 | 26.318260% |
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 | 7567 | 6393 | 167 | 167 | 2.21% | 2.61% | |
B | 7567 | 6392 | 7 | 7 | 0.09% | 0.11% | |
C | 7567 | 6393 | 1 | 1 | 0.01% | 0.02% | |
D | 7566 | 6392 | 1476 | 1476 | 19.51% | 23.09% | |
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 | 3920121 | 27877.7 | 674 | 661 | 140.6 |
A | 12 | 189 | 178407 | 1264.24 | 674 | 661 | 140.6 |
A | 0 | 31 | 82877 | 584.77 | 674 | 661 | 140.6 |
B | 5 | 255 | 82934 | 614.54 | 689 | 667 | 133.9 |
B | 12 | 16 | 19103 | 137.71 | 689 | 667 | 133.9 |
B | 12 | 111 | 17246 | 123.84 | 689 | 667 | 133.9 |
C | 12 | 250 | 9333 | 53.96 | 677 | 677 | 160.4 |
C | 14 | 254 | 4873 | 26.16 | 677 | 677 | 160.4 |
C | 3 | 233 | 4746 | 25.36 | 677 | 677 | 160.4 |
D | 2 | 165 | 4554699 | 32376.77 | 567 | 550 | 140.7 |
D | 2 | 249 | 505519 | 3589.97 | 567 | 550 | 140.7 |
D | 2 | 234 | 25967 | 180.7 | 567 | 550 | 140.7 |
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 | |