Observation information
- date-obs: 2024-09-18
- time-obs: 05:37:19.861200000
- date-end: 2024-09-18
- time-end: 07:50:41.855100000
- obs_id: A13_037T01_9000006436
- exposure: 6024.52199036
- 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_48536cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48536cztM0_level2_quad_clean.evt
|
Size (bytes) | 535,478,400 | 105,788,160 |
Size | 510.7 MB
| 100.9 MB
|
Events in quadrant A | 7,150,163 | 691,169 |
Events in quadrant B | 3,296,115 | 737,379 |
Events in quadrant C | 2,978,373 | 721,227 |
Events in quadrant D | 5,852,313 | 564,690 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26432 | 2 |
B | 0 | 15028 | 2 |
C | 0 | 14480 | 2 |
D | 0 | 22758 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7015 | 380 | 5.416964% |
B | 7015 | 218 | 3.107627% |
C | 7015 | 86 | 1.225944% |
D | 7015 | 1092 | 15.566643% |
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 | 7775 | 7016 | 11 | 11 | 0.14% | 0.16% | |
B | 7775 | 7016 | 19 | 19 | 0.24% | 0.27% | |
C | 7775 | 7016 | 1 | 1 | 0.01% | 0.01% | |
D | 7775 | 7016 | 813 | 813 | 10.46% | 11.59% | |
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 | 4098957 | 26172.95 | 752 | 737 | 156.6 |
A | 12 | 189 | 127895 | 812.08 | 752 | 737 | 156.6 |
A | 13 | 254 | 12552 | 75.46 | 752 | 737 | 156.6 |
B | 5 | 255 | 190511 | 1247.69 | 763 | 739 | 152.1 |
B | 0 | 186 | 41703 | 269.33 | 763 | 739 | 152.1 |
B | 0 | 183 | 20264 | 128.37 | 763 | 739 | 152.1 |
C | 12 | 250 | 12806 | 67.04 | 757 | 759 | 179.7 |
C | 14 | 254 | 8773 | 44.59 | 757 | 759 | 179.7 |
C | 13 | 61 | 5041 | 23.83 | 757 | 759 | 179.7 |
D | 2 | 165 | 2830489 | 15977.51 | 700 | 677 | 177.1 |
D | 2 | 249 | 200305 | 1127.13 | 700 | 677 | 177.1 |
D | 12 | 233 | 65252 | 364.6 | 700 | 677 | 177.1 |
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 | |