Questions tagged [position]
The position tag has no usage guidance.
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Which LEO satellites have publicly available accurate position information? [duplicate]
I am working on a orbit propagation project and need accurate position information of LEO satellites. I have until now used Sentinel 3A/3B (~800 km altitude), whose ECEF coordinates I can get with a 1 ...
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Where and how many RCS thrusters are installed on Starship?
Starship from SpaceX will soon launch. During the 10 km test it used RCS thrusters to flip itself in the right position. On the website it mentions how important it is to use air friction to slow down ...
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GMAT Sun Ephemeris Output
I need the sun's position vector for an analysis, conducted in Matlab.
Thus, I let output the ephemeris files for the spacecrafts and additionally I would like to do the same with the sun.
A Report ...
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How can cosmic ray muons be used to replace GPS for positioning information in 3D on Earth and underwater?
Task & Purpose's The Navy is testing a GPS-like device that doesn’t require satellites
“The future is extremely bright for this line of research." begins:
The Navy is researching a new ...
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Precise Orbit Determination (POD) vs GNSS accuracy; seeking references
Precise orbit determination provides performances that are not currently achievable with GNSS systems. I cannot find information of the reason for this. I imagine different possibilities:
Use of ...
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Trouble understanding the memorandum "Cartesian State Vectors → Keplerian Orbit Elements"
So, I was reading this memorandum to make some c# classes helping with keplerian/newtonian orbital simulations. Then, I found this weird piece for solving for $n$...
$n = (0, 0, 1)^T × h = (−h_y, h_x, ...
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How to read stuffin.space data?
Editor's note: since this question has been asked, the website in question has gone defunct and is now squatted . There are other websites available that perform this work now, but this one should no ...
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Have various lunar rovers known their own position on the Moon? If so, how?
Given that there is no satellite navigation on the Moon, have lunar rovers figured out their current location on the surface of the Moon? If so, how?
For the ones that have, did they send pictures ...
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How ADCO/TOPO "Propagated State Vector" should be interpreted?
Here https://github.com/ISS-Mimic/Mimic I read: "The current total epic and all inclusive list of public telemetry can be seen at our page here https://iss-mimic.github.io/Mimic/".
The list ...
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Perseverance current position
Is there any website which shows Perseverance live / current position relative to earth or sun ?
(Because i couldnt find any so far)
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Could two space ships, traveling at different times, pass through the same space?
This question flows from the recent question Would rocket engine exhaust create pockets of gas in space which could hinder further space exploration? it talks about daily Earth — Moon trips
If we ...
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How can I convert HGI coordinates to J2000 coordinates?
I am looking at old mission data such at this one from Vega 1. The coordinate system provided is HGI. Most of the data I have is in ICRF/J2000.0, as JPL Horizons provides. How can I convert between ...
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How can I know if NASA Horizons output is measured, calculated, estimated or what-else?
This link allows downloading from NASA Horizons server data about the distance of a body (OSIRIS-REX spacecraft ) from the Sun (see link here):
How can I know how the distance is obtained?
Is it ...
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