Observation information
- date-obs: 2024-05-18
- time-obs: 15:02:31.368200000
- date-end: 2024-05-18
- time-end: 17:17:24.360100000
- obs_id: A13_037T01_9000006256
- exposure: 5944.28656399
- 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_46718cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46718cztM0_level2_quad_clean.evt
|
Size (bytes) | 545,512,320 | 105,966,720 |
Size | 520.2 MB
| 101.1 MB
|
Events in quadrant A | 6,863,841 | 707,654 |
Events in quadrant B | 3,713,148 | 739,188 |
Events in quadrant C | 3,509,264 | 699,614 |
Events in quadrant D | 5,594,830 | 601,407 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24937 | 2 |
B | 0 | 15530 | 2 |
C | 0 | 15016 | 2 |
D | 0 | 21222 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6605 | 364 | 5.510977% |
B | 6605 | 195 | 2.952309% |
C | 6605 | 151 | 2.286147% |
D | 6605 | 766 | 11.597275% |
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 | 7645 | 6605 | 62 | 62 | 0.81% | 0.94% | |
B | 7645 | 6605 | 53 | 53 | 0.69% | 0.80% | |
C | 7645 | 6605 | 52 | 52 | 0.68% | 0.79% | |
D | 7645 | 6605 | 574 | 574 | 7.51% | 8.69% | |
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 | 3716359 | 23818.24 | 750 | 734 | 156.0 |
A | 9 | 191 | 194572 | 1242.56 | 750 | 734 | 156.0 |
A | 15 | 235 | 20546 | 127.0 | 750 | 734 | 156.0 |
B | 4 | 171 | 386618 | 2613.53 | 752 | 728 | 147.7 |
B | 0 | 198 | 61497 | 411.57 | 752 | 728 | 147.7 |
B | 0 | 245 | 52143 | 348.22 | 752 | 728 | 147.7 |
C | 5 | 250 | 230855 | 1319.35 | 738 | 743 | 174.4 |
C | 12 | 2 | 161594 | 922.24 | 738 | 743 | 174.4 |
C | 3 | 233 | 125619 | 715.98 | 738 | 743 | 174.4 |
D | 1 | 52 | 2048837 | 11375.95 | 715 | 693 | 180.0 |
D | 14 | 34 | 286079 | 1585.11 | 715 | 693 | 180.0 |
D | 13 | 171 | 160787 | 889.21 | 715 | 693 | 180.0 |
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 | |