Observation information
- date-obs: 2024-09-21
- time-obs: 18:53:51.612100000
- date-end: 2024-09-21
- time-end: 20:58:30.605800000
- obs_id: A13_037T01_9000006436
- exposure: 5438.68735474
- 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_48589cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48589cztM0_level2_quad_clean.evt
|
Size (bytes) | 488,813,760 | 99,630,720 |
Size | 466.2 MB
| 95.0 MB
|
Events in quadrant A | 6,598,351 | 667,114 |
Events in quadrant B | 5,321,686 | 611,162 |
Events in quadrant C | 2,673,303 | 681,172 |
Events in quadrant D | 3,001,773 | 608,368 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23673 | 3 |
B | 0 | 20345 | 1 |
C | 0 | 13001 | 1 |
D | 0 | 13981 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 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 | 6428 | 219 | 3.406970% |
B | 6428 | 994 | 15.463597% |
C | 6428 | 10 | 0.155569% |
D | 6428 | 93 | 1.446795% |
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 | 7479 | 6429 | 62 | 62 | 0.83% | 0.96% | |
B | 7479 | 6429 | 745 | 745 | 9.96% | 11.59% | |
C | 7479 | 6429 | 0 | 0 | 0.00% | 0.00% | |
D | 7479 | 6429 | 49 | 49 | 0.66% | 0.76% | |
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 | 3979701 | 28161.61 | 674 | 661 | 141.3 |
A | 13 | 254 | 12759 | 85.62 | 674 | 661 | 141.3 |
A | 3 | 137 | 7933 | 51.47 | 674 | 661 | 141.3 |
B | 12 | 16 | 2711453 | 21594.14 | 638 | 618 | 125.5 |
B | 5 | 255 | 27014 | 210.27 | 638 | 618 | 125.5 |
B | 10 | 14 | 26559 | 206.64 | 638 | 618 | 125.5 |
C | 14 | 254 | 13254 | 77.75 | 682 | 684 | 161.7 |
C | 13 | 61 | 4522 | 23.74 | 682 | 684 | 161.7 |
C | 14 | 67 | 2617 | 11.96 | 682 | 684 | 161.7 |
D | 13 | 171 | 271923 | 1647.57 | 668 | 647 | 164.7 |
D | 2 | 165 | 83787 | 504.94 | 668 | 647 | 164.7 |
D | 2 | 249 | 59136 | 355.23 | 668 | 647 | 164.7 |
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 | |