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ChrisR's user avatar
ChrisR's user avatar
ChrisR
  • Member for 10 years, 5 months
  • Last seen more than 1 year ago
50 votes

What is "mission design"? What do mission designers do (if such a designation exists)?

27 votes
Accepted

Why don't we build standardized space probes?

19 votes

Most accurate attitude determination system in spacecraft?

14 votes
Accepted

What is "Safe Mode"?

11 votes

Thrust and rotation strategy to circularize a standard GTO orbit using ion propulsion?

11 votes

Has ion propulsion ever been used in a deep space trajectory correction maneuver proper?

9 votes
Accepted

Are NASA (and ESA?) deep space spacecraft now generally able to store and forward messages between themselves?

8 votes

How is the trajectory of spacecraft transferring between planets monitored?

8 votes

How SpaceIL Beresheet gets to Moon from GTO?

8 votes

How can we determine the most appropriate central body for orbit propagation?

8 votes

GN&C free / open source softwares suggestions

7 votes
Accepted

How do commercial broadcast satellites in GEO produce such carefully shaped signal footprints?

7 votes
Accepted

How to best think of the State Transition Matrix, and how to use it to find periodic Halo orbits?

6 votes

Will there be privacy on the Crew Dragon moon trip?

6 votes

How is the altitude of a satellite defined, given that the Earth is not spherical?

6 votes

What is the highest number of impulses required for an optimal orbital transfer?

6 votes
Accepted

How many sun sensors are required to find a cubesat's orientation

6 votes

Precise Orbit Determination (POD) vs GNSS accuracy; seeking references

5 votes

Powered Explicit Guidance - Why wouldn't it be used?

5 votes
Accepted

Which method STK uses to compute Umbra or Penumbra time intervals?

5 votes

Why do you need a heat shield on Mars entry if the atmosphere is so thin?

5 votes

Reason for satellite passes at the same local time each day?

5 votes
Accepted

A software for orbit propagation, considering Moon, Sun and zonal harmonics

5 votes

What orbital mechanics toolkits available today are suitable for a real-time simulator?

4 votes

LVLH to ECI Conversion

4 votes

How can I verify my reconstructed gravity field of Ceres from spherical harmonics?

4 votes
Accepted

Usage of the coordinate systems in orbit propagation

4 votes

Onboard propagator in satellites SGP or J2

4 votes

How can I look for the best date of launch for gravity assist?

4 votes
Accepted

What's a good source of information on determining spacecraft positions via radio?