# Questions tagged [low-thrust]

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### Commercial Sources of variable thrust Rocket Engines [closed]

The project is to build a model rocket to take off and land vertically. Max height perhaps 100 feet. Looking for a suitable engine which can provide variable thrust control and thrust vectoring which ...
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### Optimal numerical method to solve BVP for optimal low thrust control

I need to solve a boundary value problem (BVP) for an optimal control in case of low thrust trajectories optimization. I want to include the J2 perturbations to the Edelbaum solution (multiple ...
438 views

### Low-thrust maneuver validation in GMAT

I'm working on a LEO-to-LEO transfer with low-thrust propulsion. I've generated a control sequence with a direct optimization implemented by me and I would like to use GMAT to validate the maneuver. I ...
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### Which spacecraft have entered lunar orbit through L1?

I'm examining entering lunar orbit through the Earth-Moon L1 point with low-thrust propulsion. As part of this, I'm interested in all examples of spacecraft (both actually flown and ones that didn't ...
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### Please explain a way of calculation of Lagrange multiplier in algorithm of low thrust transfer

In David Vallado's book 'Fundamental of Astrodynamics and Applications', chapter 6.7. ("Continuous-Thrust Transfers") there is an algorithm #47: Low Thrust Transfer. In this algorithm a ...
1 vote
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### GMAT: Finite Burns commands in If statements inside For loops

Does anyone know why GMAT won't execute finite burns when the BeginFiniteBurn command is placed inside an If statement which is inside a For loop? I'm sure the If condition is verified because there ...
286 views

### References for constant low-thrust spiral up-coast-spiral down phasing maneuvers for circular and non-circular orbits?

I am trying to find papers that describe constant low-thrust spiral up-coast-spiral down phasing maneuvers for circular and non-circular orbits. The thrust is assumed to be fixed at $T_{const}$ when ...
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### About measuring the thrust of an electric thruster

I read in some papers, for example this one: https://www.researchgate.net/publication/316444395_Recommended_Practice_for_Thrust_Measurement_in_Electric_Propulsion_Testing That the best way to measure ...
• 101
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### Is there a (low-thrust) thrusting strategy to change a single orbital element alone?

In literature, I have found the optimal thrusting directions (in terms of pitch and yaw) for maximizing changes in each orbital element. These optimal changes, while maximizing one element, have an ...
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### Land a cubesat on the moon with ion engine

Say I have a 3U cubesat with a BIT-3 ion thruster, an iodine tank and landing legs. Can it land on the Moon with just an ion thruster?
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