space - GEO/LEO and relativity (1 Viewer)

[pc_wizz]

i still havent found geo synchro ... =/ ... am i missin pages of the syllabus?

 

[CrashOveride]

no, its not in the syllabus

 

[velox]

Just different types of orbits
GEO is a Geosynchronous orbit, i.e. has a period of 24 hours - this is NOT i repeat NOT The same as a GeoSTATIONARY.

A Geosynchronous orbit has period of 24 hours, but does not necessarily have to be on equator, i.e. it will make a figure 8 pattern. Like you see on movies..

A Geostationary orbit is a geocynchronous orbit but is located on equator making it in same loc in sky.

Its like a square is a rectangle but a rectangle is not a square..

A LEO is a Low Earth Orbit... Its lower than the GEO orbits and as such, has a period < 24 hours... so its always moving in the sky relative to earth..

It (GEO) actually has a period of 23hrs 56mins and 4seconds (a sidereal day) NOT a Solar day (24 hours)

 

[rama_v]

The sylabus quotes:
"compare qualitatively low Earth and geo-stationary orbits"

No mentioning of geo-synchronous orbits. Dictionary.com:

Geo-stationary:

1. Of, relating to, or being a satellite that travels above Earth's equator from west to east at an altitude of approximately 35,900 kilometers (22,300 miles) and at a speed matching that of Earth's rotation, thus remaining stationary in relation to Earth.

2. Of, relating to, or being the orbit of such a satellite.

From what this says IMO we dont need to know geo-synchronous satellites, but to be safe I would learn it.

 

[velox]

i revived an old thread just to correct the facts, so ppl dont get it wrong. Geosynchronous is NOT in the syllabus