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Alfonso Gonzalez's user avatar
Alfonso Gonzalez's user avatar
Alfonso Gonzalez's user avatar
Alfonso Gonzalez
  • Member for 3 years, 3 months
  • Last seen more than a week ago
18 votes
Accepted

Which 3D space simulation/visualization software (free or commercial) can I use as a post processor of data calculated with Fortran?

8 votes
Accepted

Differences between numerical propagators

6 votes

2 body equations of motion in 3D

5 votes
Accepted

How to fly from Earth to Mars if the differences between phase angles is too big for Hohmann transfer but we have fuel for other transfers?

5 votes
Accepted

In which direction does the x axis of the ECI at 1.1.2000 at 12:00 (J2000) go and where is the 0 deg meridian?

5 votes

Why can Amazônia-1 observe the Amazon "every day or two" while Landsat takes 16 days between observations? Is "orbital magic" at play here?

5 votes
Accepted

What is this perturbation effect called, and what would be an analytical expression for the resulting eccentricity oscillations?

4 votes

Gravitational force of asteroid Bennu

4 votes

How can I plot a satellite's orbit in 3D from a TLE using Python and Skyfield?

4 votes
Accepted

How to find eccentric anomaly by mean anomaly?

4 votes

How can I calculate the future position of a satellite orbiting a central body as a function of time using known orbital elements?

4 votes

Orbital Component Abbreviations

3 votes

Difference between rotated frame and rotating frame

3 votes

Is it posible to convert JPL Horizons Vectors to ECEF?

3 votes
Accepted

Converting J2000 to ECEF?

3 votes

Does Tianwen-1 have a near-repeat ground track orbit in order to scan the same general area on each of its low altitude passes?

2 votes

Can we determine the position of an artificial satellite using Kepler's parameters?

2 votes

Determining the launch period for Hohmann transfer

2 votes
Accepted

SPICE defining a topocentric frame on the Moon

2 votes
Accepted

How to determine the distance between where Earth and Mars are two specific dates?

2 votes

How can I find the old reference orbit for JWST (from 2014) and get AltAz positions from Earth without learning Spice? Can Horizons do it? Can Python?

1 vote

How to find ECI coordinates for a circular orbit

1 vote

SPICE toolkit occultation finder doesn't work with spacecraft

0 votes

Which orbital maneuver is currently regarded as the most viable for a human mission to mars?