Observation information
- date-obs: 2024-05-18
- time-obs: 17:28:07.359100000
- date-end: 2024-05-18
- time-end: 19:23:42.354000000
- obs_id: A13_037T01_9000006256
- exposure: 5505.49365836
- 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_9000006256_46720cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46720cztM0_level2_quad_clean.evt
|
Size (bytes) | 446,310,720 | 95,895,360 |
Size | 425.6 MB
| 91.5 MB
|
Events in quadrant A | 5,625,911 | 637,996 |
Events in quadrant B | 3,093,239 | 661,716 |
Events in quadrant C | 3,388,327 | 625,416 |
Events in quadrant D | 3,962,774 | 572,693 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20300 | 1 |
B | 0 | 13452 | 1 |
C | 0 | 14102 | 1 |
D | 0 | 15783 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 118 | 0 |
B | 0 | 118 | 0 |
C | 0 | 118 | 0 |
D | 0 | 118 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5806 | 234 | 4.030313% |
B | 5806 | 183 | 3.151912% |
C | 5806 | 160 | 2.755770% |
D | 5806 | 275 | 4.736480% |
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 | 6936 | 5807 | 54 | 54 | 0.78% | 0.93% | |
B | 6936 | 5807 | 48 | 48 | 0.69% | 0.83% | |
C | 6936 | 5807 | 70 | 70 | 1.01% | 1.21% | |
D | 6936 | 5806 | 236 | 236 | 3.40% | 4.06% | |
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 | 2980638 | 22168.46 | 643 | 627 | 134.4 |
A | 9 | 191 | 68105 | 501.97 | 643 | 627 | 134.4 |
A | 13 | 248 | 32771 | 239.12 | 643 | 627 | 134.4 |
B | 4 | 171 | 237321 | 1867.73 | 648 | 629 | 126.7 |
B | 5 | 172 | 162421 | 1276.7 | 648 | 629 | 126.7 |
B | 0 | 198 | 38579 | 299.46 | 648 | 629 | 126.7 |
C | 5 | 250 | 652062 | 4365.71 | 635 | 640 | 149.2 |
C | 1 | 241 | 121440 | 809.58 | 635 | 640 | 149.2 |
C | 12 | 2 | 102308 | 681.36 | 635 | 640 | 149.2 |
D | 1 | 52 | 680957 | 4288.33 | 627 | 609 | 158.7 |
D | 14 | 34 | 511761 | 3221.86 | 627 | 609 | 158.7 |
D | 2 | 249 | 129393 | 811.74 | 627 | 609 | 158.7 |
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 | |