Observation information
- date-obs: 2024-09-21
- time-obs: 10:00:13.638600000
- date-end: 2024-09-21
- time-end: 12:19:57.632000000
- obs_id: A13_037T01_9000006436
- exposure: 6674.45381492
- 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_48583cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48583cztM0_level2_quad_clean.evt
|
Size (bytes) | 698,184,000 | 125,507,520 |
Size | 665.8 MB
| 119.7 MB
|
Events in quadrant A | 8,161,131 | 858,628 |
Events in quadrant B | 4,422,550 | 893,471 |
Events in quadrant C | 3,515,229 | 856,791 |
Events in quadrant D | 9,096,251 | 608,535 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30628 | 2 |
B | 0 | 19012 | 0 |
C | 0 | 17005 | 0 |
D | 0 | 32885 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 168 | 0 |
B | 0 | 168 | 0 |
C | 0 | 168 | 0 |
D | 0 | 168 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8383 | 184 | 2.194918% |
B | 8384 | 139 | 1.657920% |
C | 8384 | 9 | 0.107347% |
D | 8384 | 1875 | 22.364027% |
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 | 8383 | 8383 | 1 | 1 | 0.01% | 0.01% | |
B | 8384 | 8384 | 60 | 60 | 0.72% | 0.72% | |
C | 8384 | 8384 | 0 | 0 | 0.00% | 0.00% | |
D | 8384 | 8384 | 1374 | 1374 | 16.39% | 16.39% | |
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 | 4523895 | 23660.33 | 915 | 895 | 191.2 |
A | 0 | 31 | 64917 | 334.91 | 915 | 895 | 191.2 |
A | 13 | 248 | 32108 | 163.28 | 915 | 895 | 191.2 |
B | 12 | 16 | 479298 | 2640.56 | 910 | 880 | 181.2 |
B | 5 | 255 | 322373 | 1774.43 | 910 | 880 | 181.2 |
B | 12 | 111 | 23962 | 127.4 | 910 | 880 | 181.2 |
C | 14 | 67 | 11606 | 50.7 | 898 | 898 | 211.2 |
C | 13 | 61 | 6106 | 24.66 | 898 | 898 | 211.2 |
C | 2 | 80 | 3427 | 11.97 | 898 | 898 | 211.2 |
D | 2 | 165 | 5315203 | 25987.79 | 815 | 787 | 204.5 |
D | 2 | 249 | 262182 | 1278.24 | 815 | 787 | 204.5 |
D | 13 | 171 | 241540 | 1177.3 | 815 | 787 | 204.5 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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|
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 |
|
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Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
|
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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 | |