Observation information
- date-obs: 2024-09-23
- time-obs: 01:57:19.518100000
- date-end: 2024-09-23
- time-end: 04:14:16.510600000
- obs_id: A13_037T01_9000006436
- exposure: 6149.87394631
- 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_48608cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48608cztM0_level2_quad_clean.evt
|
Size (bytes) | 484,626,240 | 103,147,200 |
Size | 462.2 MB
| 98.4 MB
|
Events in quadrant A | 7,454,683 | 660,521 |
Events in quadrant B | 4,012,985 | 698,450 |
Events in quadrant C | 2,708,192 | 688,596 |
Events in quadrant D | 3,255,868 | 619,069 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26761 | 2 |
B | 0 | 16570 | 2 |
C | 0 | 13252 | 2 |
D | 0 | 14779 | 2 |
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 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6540 | 406 | 6.207951% |
B | 6540 | 371 | 5.672783% |
C | 6540 | 7 | 0.107034% |
D | 6540 | 64 | 0.978593% |
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 | 7620 | 6542 | 248 | 248 | 3.25% | 3.79% | |
B | 7620 | 6542 | 210 | 210 | 2.76% | 3.21% | |
C | 7620 | 6542 | 1 | 1 | 0.01% | 0.02% | |
D | 7620 | 6542 | 54 | 54 | 0.71% | 0.83% | |
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 | 4035592 | 28204.28 | 686 | 672 | 143.1 |
A | 13 | 248 | 753270 | 5260.69 | 686 | 672 | 143.1 |
A | 13 | 254 | 11704 | 77.11 | 686 | 672 | 143.1 |
B | 12 | 16 | 1195346 | 8785.74 | 688 | 665 | 136.0 |
B | 0 | 183 | 63222 | 460.05 | 688 | 665 | 136.0 |
B | 12 | 111 | 17585 | 124.43 | 688 | 665 | 136.0 |
C | 14 | 254 | 9716 | 55.55 | 690 | 694 | 162.4 |
C | 12 | 250 | 7138 | 39.68 | 690 | 694 | 162.4 |
C | 13 | 61 | 4740 | 24.91 | 690 | 694 | 162.4 |
D | 2 | 165 | 497512 | 2931.41 | 677 | 655 | 169.5 |
D | 10 | 199 | 121178 | 711.07 | 677 | 655 | 169.5 |
D | 2 | 234 | 32515 | 187.97 | 677 | 655 | 169.5 |
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 | |