Questions tagged [geostationary]
Questions about orbits whose position in the sky remains the same for a stationary observer on the primary body.
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How do communication satellites remain positioned above a particular region?
From what I understand, an object has to keep moving in an orbit to not come crashing down to Earth. (The ISS is the first thing I think of for this.)
How then, do satellites which are purpose built ...
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How do you calculate the lat and lon of a point on the earth using azimuth and elevation seen from a geostationary satellite?
I am given the longitude of a geostationary satellite and a pointing vector from the satellite in the form of azimuth and elevation angles looking from the satellite towards the earth (where zero ...
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What's the closest that an Apollo mission passed GEO on its way to the moon?
@Uwe's comment
No astronaut ever visited geostationary orbit at 22-23k miles to maintain or deploy satellites. The Apollo astronauts just rushed by on their way to the Moon and back.
below the ...
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Statites - Are they possible in anything but theory?
In this question someone mentioned the idea of a Statite, a satellite which is stationary above a planet without being in orbit, usually in an orientation which is not possible with an orbit. It seems ...
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What does a 6-month GTO to GEO transfer look like in practice?
Based on How much time does it take to circularize a GTO orbit using ion propulsion? and the launch and entry into service dates, it takes about 6 months of continuous ion propulsion to transfer a GTO ...
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For which applications are LEO and GEO substitutable?
This article, this article, and this earlier question indicate that, given enough satellites in LEO, it's possible to substitute between GEO and LEO. The first article and the question have some ...
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Computing a new TLE following a delta-v impulse?
Is there some code or a library out there that can take orbital elements, add a known delta-v component and then compute a new TLE? I found this one https://apps.dtic.mil/dtic/tr/fulltext/u2/a289281....
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What is the Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) Augmented Geosynchronous Laboratory Experiment satellite?
The Spaceflight Now article Multi-satellite payload hoisted into high-altitude orbit by Atlas 5 rocket includes the passage:
The lower passenger is the Evolved Expendable Launch Vehicle (EELV) ...
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Why would the orbit of a satellite in GEO climb by 21 km in altitude over six months by itself?
This answer mentions several effects that tend to move geostationary satellites out of their "box" over time, but one really surprised me.
According to the plot below (from there, but ...
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Is it possible to capture geostationary satellites with DSLR?
DSLR is to be mounted on a tripod and pointed at sky with a zoom lens.
Would a sufficiently long duration of exposure reveal these non-moving satellites as bright "stars" amongst the streaks caused ...
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Inclination Maneuver of GEO Satellite
I have performed inclination maneuver for GEO satellite at ascending or descending node. The inclination of the satellite is 0.05 deg. Then I performed the maneuver so the inclination change to 0....
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How to calculate when an areostationary satellite would be unable to talk to earth?
Consider an areostationary (geostationary but for Mars) satellite that communicates to Earth. Since on some orbits, Earth would be behind Mars from the point of view of the satellite, I imagine that ...
user26041
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What was the first spacecraft intentionally moved from GEO to the graveyard orbit to die? (just a bit above geosynchronous)
Why “super” for supersynchronous orbits? Why not “trans”? and discussions and answers there got me wondering:
Question: What was the first spacecraft intentionally moved from GEO or geosynchronous to ...
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How have the 'gift' transponders on ISRO's GSAT-9 been used by other countries?
edit: It's been seven months. close to two years close to two years and seven months over three years now, have any of the 'gift' transponders been used or at least tested yet by the gift recipient ...
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Point Ahead Angle Calculation between LEO-GEO Satellite (ISL Scenario)
So, I have got two reference TLE from 2 different Satellite in LEO-GEO, which are as follows: (1st TLE for LEO, 2nd TLE for GEO)
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Syncom-3 was the first geostationary satellite. Anyone know of a description of the onboard electronics?
I am interested in any description of the electronics on Syncom-3, the first geostationary satellite. I've been able to find quite a bit of general information. There was a pair of 2 Watt TWTs and ...
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