what are ground tracks? coe determination a e i ? ? ? ? ? ? coe determination
Post on 20-Dec-2015
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![Page 1: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/1.jpg)
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What are ground tracks?
![Page 4: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/4.jpg)
What are ground tracks?
![Page 5: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/5.jpg)
COE Determination
![Page 6: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/6.jpg)
aei
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COE Determination
![Page 7: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/7.jpg)
Non-rotating Earth
![Page 8: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/8.jpg)
Rotating Earth
![Page 9: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/9.jpg)
COE Determination
Semimajor axis
Δ longitude
ΔN
P =ΔN
15º / hr
3a2P
![Page 10: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/10.jpg)
aei
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COE Determination
?
![Page 11: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/11.jpg)
COE Determination
Eccentricity
Circle
![Page 12: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/12.jpg)
COE Determination
Eccentricity
![Page 13: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/13.jpg)
COE Determination
Eccentricity
Line Symmetry
Ellipse
![Page 14: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/14.jpg)
COE Determination
Eccentricity
Line Symmetry
Ellipse
![Page 15: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/15.jpg)
COE Determination
Eccentricity
Line Symmetry
Ellipse
![Page 16: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/16.jpg)
COE Determination
Eccentricity
Line Symmetry
Ellipse
![Page 17: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/17.jpg)
COE Determination
Eccentricity
Line Symmetry
Ellipse
![Page 18: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/18.jpg)
COE Determination
Eccentricity
Line Symmetry
Ellipse
![Page 19: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/19.jpg)
COE Determination
Eccentricity
Line Symmetry
Ellipse
![Page 20: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/20.jpg)
COE Determination
Eccentricity
![Page 21: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/21.jpg)
COE Determination
Eccentricity
Hinge Symmetry
Ellipse
![Page 22: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/22.jpg)
COE Determination
Hinge Symmetry
Eccentricity
Ellipse
![Page 23: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/23.jpg)
COE Determination
Hinge Symmetry
Eccentricity
Ellipse
![Page 24: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/24.jpg)
COE Determination
Hinge Symmetry
Eccentricity
Ellipse
![Page 25: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/25.jpg)
COE Determination
Hinge Symmetry
Eccentricity
Ellipse
![Page 26: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/26.jpg)
COE Determination
Eccentricity
Hinge Symmetry
Ellipse
![Page 27: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/27.jpg)
COE Determination
Eccentricity
![Page 28: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/28.jpg)
COE Determination
Eccentricity
Line & Hinge
Circle
![Page 29: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/29.jpg)
COE Determination
Eccentricity
Neither
Ellipse
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COE Determination
Eccentricity
![Page 31: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/31.jpg)
aei
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COE Determination
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![Page 32: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/32.jpg)
COE Determination
Inclination
i = highest latitude
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COE Determination
Inclination
i = 180º - highest latitude
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COE Determination
Inclination
i = highest latitude
![Page 35: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/35.jpg)
COE Determination
Inclination
i = 180º - highest latitude
![Page 36: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/36.jpg)
aei
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?
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COE Determination
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aei
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COE Determination
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COE Determination
Argument of Perigee
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COE Determination
360º per orbit90º
180º
270º
360º
Ascending Node
Argument of Perigee
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Perigee = 180
Perigee = 270
Perigee = 90
Perigee = 0
Hinge Symmetric Line Symmetric
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COE Determination
Argument of Perigee
ω = 180º
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COE Determination
Argument of Perigee
ω = 90º
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COE Determination
Argument of Perigee
ω = 0º
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COE Determination
Argument of Perigee
ω = 270º
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COE Determination
Argument of Perigee
Hinge Symmetry
ω = 0º or 180º
![Page 46: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/46.jpg)
COE Determination
Argument of Perigee
Line Symmetry
ω = 90º or 270º
![Page 47: What are ground tracks? COE Determination a e i ? ? ? ? ? ? COE Determination](https://reader037.vdocuments.site/reader037/viewer/2022102800/56649d485503460f94a244a8/html5/thumbnails/47.jpg)
aei
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COE Determination
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Orbit Examples
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Molniya
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Geostationary
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Geosynchronous
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Geosynchronous
e = 0.8 = 180
e = 0.8 = 0
e = 0.0
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Geosynchronous
e = 0i = 0
e = 0.4 = 180
e = 0.6 = 90
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