Observation information
- date-obs: 2024-09-22
- time-obs: 19:10:39.538700000
- date-end: 2024-09-22
- time-end: 21:17:05.532600000
- obs_id: A13_037T01_9000006436
- exposure: 6023.15638238
- 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_48604cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48604cztM0_level2_quad_clean.evt
|
Size (bytes) | 426,516,480 | 102,196,800 |
Size | 406.8 MB
| 97.5 MB
|
Events in quadrant A | 6,611,933 | 658,958 |
Events in quadrant B | 2,946,757 | 699,637 |
Events in quadrant C | 2,708,157 | 679,637 |
Events in quadrant D | 3,026,229 | 611,379 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23649 | 4 |
B | 0 | 13573 | 2 |
C | 0 | 13019 | 2 |
D | 0 | 13976 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 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 | 6373 | 304 | 4.770124% |
B | 6373 | 142 | 2.228150% |
C | 6373 | 36 | 0.564883% |
D | 6373 | 91 | 1.427899% |
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 | 7488 | 6374 | 136 | 136 | 1.82% | 2.13% | |
B | 7488 | 6374 | 61 | 61 | 0.81% | 0.96% | |
C | 7488 | 6374 | 1 | 1 | 0.01% | 0.02% | |
D | 7488 | 6374 | 55 | 55 | 0.73% | 0.86% | |
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 | 3965652 | 28326.75 | 674 | 660 | 140.0 |
A | 13 | 248 | 23849 | 165.67 | 674 | 660 | 140.0 |
A | 13 | 254 | 12533 | 84.82 | 674 | 660 | 140.0 |
B | 0 | 186 | 207891 | 1539.28 | 683 | 660 | 134.6 |
B | 0 | 183 | 27697 | 200.82 | 683 | 660 | 134.6 |
B | 12 | 111 | 16878 | 120.46 | 683 | 660 | 134.6 |
C | 14 | 254 | 19251 | 114.96 | 683 | 688 | 161.5 |
C | 12 | 249 | 16429 | 97.49 | 683 | 688 | 161.5 |
C | 3 | 233 | 7690 | 43.36 | 683 | 688 | 161.5 |
D | 13 | 171 | 170798 | 1018.28 | 672 | 651 | 167.1 |
D | 2 | 165 | 106629 | 634.25 | 672 | 651 | 167.1 |
D | 2 | 249 | 66208 | 392.34 | 672 | 651 | 167.1 |
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 | |