User ChrisR

50 votes

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

answered Feb 17, 2021 at 2:57

27 votes

Accepted

Why don't we build standardized space probes?

answered Aug 27, 2020 at 20:50

19 votes

Most accurate attitude determination system in spacecraft?

answered Mar 19, 2021 at 0:26

14 votes

Accepted

What is "Safe Mode"?

answered Feb 7, 2014 at 14:59

11 votes

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

answered May 15, 2017 at 8:01

11 votes

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

answered Nov 27, 2021 at 22:34

9 votes

Accepted

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

answered Aug 3, 2020 at 4:19

8 votes

How is the trajectory of spacecraft transferring between planets monitored?

answered Mar 6, 2017 at 6:08

8 votes

How SpaceIL Beresheet gets to Moon from GTO?

answered Feb 26, 2019 at 6:12

8 votes

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

answered Feb 17, 2022 at 1:48

8 votes

GN&C free / open source softwares suggestions

answered Aug 31, 2022 at 19:59

7 votes

Accepted

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

answered Mar 29, 2017 at 21:02

7 votes

Accepted

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

answered Jun 14, 2017 at 7:22

6 votes

Will there be privacy on the Crew Dragon moon trip?

answered May 30, 2017 at 16:42

6 votes

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

answered Nov 28, 2017 at 10:21

6 votes

Accepted

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

answered Jul 8, 2018 at 20:55

6 votes

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

answered Nov 15, 2020 at 0:51

6 votes

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

answered Jan 23, 2022 at 0:28

5 votes

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

answered Nov 29, 2022 at 17:15

5 votes

Accepted

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

answered Dec 2, 2022 at 4:49

5 votes

Accepted

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

answered Jan 3, 2021 at 2:24

5 votes

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

answered Jul 9, 2020 at 23:36

5 votes

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

answered Jun 12, 2018 at 14:36

5 votes

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

answered Jul 19, 2019 at 5:11

5 votes

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

answered Nov 28, 2017 at 10:29

4 votes

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

answered May 14, 2018 at 4:24

4 votes

Accepted

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

answered Jun 4, 2017 at 23:51

4 votes

Accepted

Ion engine: purpose of magnet rings

answered Mar 12, 2017 at 18:36

4 votes

Are transfers between two orbits commutative?

answered Jan 16, 2017 at 5:45

4 votes

LVLH to ECI Conversion

answered Jul 13, 2019 at 3:53

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86 Answers

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

Why don't we build standardized space probes?

Most accurate attitude determination system in spacecraft?

What is "Safe Mode"?

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

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

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

How is the trajectory of spacecraft transferring between planets monitored?

How SpaceIL Beresheet gets to Moon from GTO?

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

GN&C free / open source softwares suggestions

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

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

Will there be privacy on the Crew Dragon moon trip?

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

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

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

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

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

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

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

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

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

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

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

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

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

Ion engine: purpose of magnet rings

Are transfers between two orbits commutative?

LVLH to ECI Conversion