Observation information
- date-obs: 2024-09-19
- time-obs: 23:12:19.743500000
- date-end: 2024-09-20
- time-end: 01:30:54.735900000
- obs_id: A13_037T01_9000006436
- exposure: 5976.64746577
- 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_48562cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48562cztM0_level2_quad_clean.evt
|
Size (bytes) | 445,000,320 | 102,827,520 |
Size | 424.4 MB
| 98.1 MB
|
Events in quadrant A | 6,930,422 | 659,685 |
Events in quadrant B | 2,929,668 | 722,614 |
Events in quadrant C | 2,636,858 | 689,790 |
Events in quadrant D | 3,484,189 | 600,275 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25214 | 2 |
B | 0 | 13401 | 2 |
C | 0 | 12796 | 6 |
D | 0 | 15240 | 6 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20 | 0 |
B | 0 | 20 | 0 |
C | 0 | 20 | 0 |
D | 0 | 21 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6326 | 300 | 4.742333% |
B | 6326 | 64 | 1.011698% |
C | 6324 | 4 | 0.063251% |
D | 6324 | 250 | 3.953194% |
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 | 7501 | 6327 | 160 | 160 | 2.13% | 2.53% | |
B | 7501 | 6327 | 20 | 20 | 0.27% | 0.32% | |
C | 7501 | 6327 | 0 | 0 | 0.00% | 0.00% | |
D | 7501 | 6327 | 197 | 197 | 2.63% | 3.11% | |
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 | 3879198 | 27798.01 | 670 | 657 | 139.5 |
A | 12 | 189 | 269410 | 1926.18 | 670 | 657 | 139.5 |
A | 0 | 31 | 105365 | 750.45 | 670 | 657 | 139.5 |
B | 5 | 255 | 198504 | 1475.77 | 686 | 665 | 134.1 |
B | 12 | 111 | 17180 | 123.19 | 686 | 665 | 134.1 |
B | 11 | 111 | 15706 | 112.2 | 686 | 665 | 134.1 |
C | 12 | 250 | 4884 | 26.5 | 674 | 678 | 158.7 |
C | 13 | 61 | 4406 | 23.49 | 674 | 678 | 158.7 |
C | 14 | 254 | 4216 | 22.3 | 674 | 678 | 158.7 |
D | 2 | 249 | 543846 | 3312.95 | 649 | 630 | 164.0 |
D | 2 | 165 | 297542 | 1810.8 | 649 | 630 | 164.0 |
D | 12 | 128 | 86239 | 522.11 | 649 | 630 | 164.0 |
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 | |