Current Radar or Satellite Image

Flhurricane.com - Central Florida Hurricane Center - Tracking Storms since 1995Hurricanes Without the Hype! Since 1995


Very quiet now as shear and dry Saharan air cover much of the Atlantic
Days since last H. Landfall - US: Any 296 (Nicholas) , Major: 311 (Ida) Florida - Any: 1365 (Michael) Major: 1365 (Michael)
 


Off-Topic >> Everything and Nothing

Jump to first unread post. Pages: 1
Keith234
Storm Chaser


Reged: Thu
Posts: 921
Loc: 40.7N/73.3W Long Island
Geosynchronous Orbit:How to caculuate
      #34041 - Fri Oct 22 2004 03:18 PM

I thought this might be of some interest, as it pretains to weather and I just finished a term paper on it.
We will use Kepler's third law

rs3/Ts2 = rm3/Tm2

where TS = peroid of orbit of Satellite = 1 day
Tm = period of orbit of Moon = 27.3 days
rm = distance from center of Moon to center of Earth = 3.84 x 108 m
and rs = distance from Satellite to center of Earth

Solving: rs3/Ts2 = rm3/Tm2

for rs gives us

rs = rm (Tm/Ts)2/3

or rs = 0.11 rm

hence

(a) the satellite is situated about
1/10 th of the distance to the moon

(b) rs = 0.11 rm = 42.35 x 106 m
and since R = 6.38 x 106 m
then the satellite is 6.64 earth radii from
the earth's centre or 5.64 earth radii above
the ground at the equator.

(c) its height above the ground is 5.64 R
or 5.64 6.38 x 106 m
or 35,970 km above the earth at the equator.
For those that don't feel that my artimetic is right, 2/3 means square it and then divide by the cube root of the squared. Looks pretty hard, but it isn't!

--------------------
"I became insane with horrible periods of sanity"
Edgar Allan Poe


Edited by Keith234 (Fri Oct 22 2004 03:30 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1



Extra information
0 registered and 2 anonymous users are browsing this forum.

Moderator:  CFHC, Colleen A., danielw, RedingtonBeachGuy, Bloodstar, tpratch, cieldumort 

Print Topic

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Topic views: 3380

Rate this topic

Jump to

Note: This is NOT an official page. It is run by weather hobbyists and should not be used as a replacement for official sources. 
CFHC's main servers are currently located at
Hostdime.com in Orlando, FL.
Image Server Network thanks to Mike Potts and Amazon Web Services. If you have static file hosting space that allows dns aliasing contact us to help out! Some Maps Provided by:
Great thanks to all who donated and everyone who uses the site as well. Site designed for 800x600+ resolution
When in doubt, take the word of the National Hurricane Center