Observation information
- date-obs: 2024-09-22
- time-obs: 01:38:59.591700000
- date-end: 2024-09-22
- time-end: 03:52:40.585200000
- obs_id: A13_037T01_9000006436
- exposure: 6061.31693327
- 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_48593cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48593cztM0_level2_quad_clean.evt
|
Size (bytes) | 443,056,320 | 102,810,240 |
Size | 422.5 MB
| 98.0 MB
|
Events in quadrant A | 6,671,496 | 664,074 |
Events in quadrant B | 3,715,601 | 711,336 |
Events in quadrant C | 2,669,232 | 682,120 |
Events in quadrant D | 2,851,112 | 612,478 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24374 | 3 |
B | 0 | 15584 | 3 |
C | 0 | 12921 | 3 |
D | 0 | 13500 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 0 |
B | 0 | 16 | 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 | 6350 | 232 | 3.653543% |
B | 6350 | 90 | 1.417323% |
C | 6350 | 10 | 0.157480% |
D | 6350 | 20 | 0.314961% |
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 | 7505 | 6352 | 62 | 62 | 0.83% | 0.98% | |
B | 7505 | 6352 | 22 | 22 | 0.29% | 0.35% | |
C | 7505 | 6352 | 1 | 1 | 0.01% | 0.02% | |
D | 7505 | 6352 | 17 | 17 | 0.23% | 0.27% | |
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 | 3947932 | 28072.72 | 677 | 662 | 140.6 |
A | 12 | 189 | 38982 | 272.53 | 677 | 662 | 140.6 |
A | 7 | 3 | 36365 | 253.92 | 677 | 662 | 140.6 |
B | 12 | 16 | 902265 | 6689.15 | 687 | 665 | 134.8 |
B | 0 | 183 | 97735 | 720.18 | 687 | 665 | 134.8 |
B | 12 | 111 | 17200 | 122.68 | 687 | 665 | 134.8 |
C | 12 | 249 | 11865 | 69.96 | 677 | 681 | 159.9 |
C | 12 | 250 | 8962 | 51.8 | 677 | 681 | 159.9 |
C | 14 | 67 | 6626 | 37.19 | 677 | 681 | 159.9 |
D | 2 | 249 | 143514 | 857.75 | 666 | 644 | 166.6 |
D | 13 | 171 | 82738 | 492.87 | 666 | 644 | 166.6 |
D | 2 | 234 | 29366 | 172.44 | 666 | 644 | 166.6 |
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 | |