Low energy trajectories - Revision history

RichardWSmith: Changed wording to make arguments clearer.

2022-11-21T12:49:13Z

Changed wording to make arguments clearer.

← Older revision		Revision as of 13:49, 21 November 2022
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	Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current [[Hohmann transfer\|Hohmann transfer orbits]], but will save [[propellant]] and thus allow more payload.		Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current [[Hohmann transfer\|Hohmann transfer orbits]], but will save [[propellant]] and thus allow more payload.
	Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]]. It also allows for some items to be tradable without a tremendous transportation cost.		Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]]. It also allows for some items to be tradable without a tremendous transportation cost.


	==Methods==		==Methods==
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	*The [https://en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]		*The [https://en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]
	*Using [[ion thrusters]]/[[solar sails]]/[[plasma sails]]		*Using [[ion thrusters]]/[[solar sails]]/[[plasma sails]]


	==Disadvantages==		==Disadvantages==

	*Such trajectories will take much longer then Hohmann transfers		*Such trajectories will take much longer then Hohmann transfers. Thus it is not suitable for time sensitive cargo.
	*This means cargo will be exposed to the harsh conditions of space for a longer period of time. ~~New and ingenious methods will be needed to solve this~~ for ~~radiation or time sensitive cargo~~.		*This means cargo will be exposed to the harsh conditions of space for a longer period of time. This may limit what types of cargo are suitable for these paths.
	*Low energy transfer orbits can only launch when Mars and Earth are in the correct orbital positions. Where as high energy trajectories can launch in larger time windows.		*Low energy transfer orbits can only launch when Mars and Earth are in the correct orbital positions. Where as high energy trajectories can launch more often, in larger time windows.

	[[category:Orbital Mechanics]]		[[category:Orbital Mechanics]]

RichardWSmith: Changed order of bullets to make previous argument clearer.

2022-11-12T07:39:22Z

Changed order of bullets to make previous argument clearer.

← Older revision		Revision as of 08:39, 12 November 2022
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	*Such trajectories will take much longer then Hohmann transfers		*Such trajectories will take much longer then Hohmann transfers
			*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this for radiation or time sensitive cargo.
	*Low energy transfer orbits can only launch when Mars and Earth are in the correct orbital positions. Where as high energy trajectories can launch in larger time windows.		*Low energy transfer orbits can only launch when Mars and Earth are in the correct orbital positions. Where as high energy trajectories can launch in larger time windows.
	*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this for radiation or time sensitive cargo.

	[[category:Orbital Mechanics]]		[[category:Orbital Mechanics]]

RichardWSmith: /* Disadvantages */ time windows for launches.

2022-11-10T23:07:25Z

Disadvantages: time windows for launches.

← Older revision		Revision as of 00:07, 11 November 2022
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	*Such trajectories will take much longer then Hohmann transfers		*Such trajectories will take much longer then Hohmann transfers
			*Low energy transfer orbits can only launch when Mars and Earth are in the correct orbital positions. Where as high energy trajectories can launch in larger time windows.
	*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this for radiation or time sensitive cargo.		*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this for radiation or time sensitive cargo.

	[[category:Orbital Mechanics]]		[[category:Orbital Mechanics]]

Michel Lamontagne at 19:06, 10 November 2022

2022-11-10T19:06:42Z

← Older revision		Revision as of 20:06, 10 November 2022
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	Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current [[Hohmann transfer\|Hohmann transfer orbits]], but will save [[propellant]] and thus allow more payload.		Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current [[Hohmann transfer\|Hohmann transfer orbits]], but will save [[propellant]] and thus allow more payload.
	Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]].		Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]]. It also allows for some items to be tradable without a tremendous transportation cost.


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	*Such trajectories will take much longer then Hohmann transfers		*Such trajectories will take much longer then Hohmann transfers
	*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this.		*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this for radiation or time sensitive cargo.

	[[category:Orbital Mechanics]]		[[category:Orbital Mechanics]]

Michel Lamontagne at 14:26, 13 November 2020

2020-11-13T14:26:25Z

← Older revision		Revision as of 15:26, 13 November 2020
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	Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current [[Hohmann transfer ~~orbit~~\|Hohmann transfer orbits]], but will save [[propellant]] and thus allow more payload.		Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current [[Hohmann transfer\|Hohmann transfer orbits]], but will save [[propellant]] and thus allow more payload.
	Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]].		Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]].


	== Methods ==		==Methods==

	*[[Bi-elliptic transfer\|Bi-elliptic transfers]]		*[[Bi-elliptic transfer\|Bi-elliptic transfers]]
	*The [https://en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]		*The [https://en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]
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	== Disadvantages ==		==Disadvantages==

	*Such trajectories will take much longer then Hohmann transfers		*Such trajectories will take much longer then Hohmann transfers
	*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this.		*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this.

	[[category:Orbital Mechanics]]		[[category:Orbital Mechanics]]

Jburk at 18:24, 17 December 2018

2018-12-17T18:24:31Z

← Older revision		Revision as of 19:24, 17 December 2018
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	*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this.		*This means cargo will be exposed to the harsh conditions of space for a longer period of time. New and ingenious methods will be needed to solve this.

	~~[[category:Technology]]~~
	[[category:Orbital Mechanics]]		[[category:Orbital Mechanics]]

Pb: fix link

2018-09-13T05:06:24Z

fix link

← Older revision		Revision as of 06:06, 13 September 2018
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	== Methods ==		== Methods ==
	*[[Bi-elliptic transfer\|Bi-elliptic transfers]]		*[[Bi-elliptic transfer\|Bi-elliptic transfers]]
	*The [~~http~~://~~www.~~en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]		*The [https://en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]
	*Using [[ion thrusters]]/[[solar sails]]/[[plasma sails]]		*Using [[ion thrusters]]/[[solar sails]]/[[plasma sails]]

Laertes: cat+ and interlinks

2008-12-27T19:49:43Z

cat+ and interlinks

← Older revision		Revision as of 20:49, 27 December 2008
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	Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current Hohmann transfer orbits, but will save propellant and thus allow more payload.		Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current [[Hohmann transfer orbit\|Hohmann transfer orbits]], but will save [[propellant]] and thus allow more payload.
	Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]].		Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]].


	== Methods ==		== Methods ==
	*Bi-elliptic transfers		*[[Bi-elliptic transfer\|Bi-elliptic transfers]]
	*The [http://www.en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]		*The [http://www.en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]
	*Using ion thrusters/solar sails/plasma sails		*Using [[ion thrusters]]/[[solar sails]]/[[plasma sails]]


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	[[category:Technology]]		[[category:Technology]]
			[[category:Orbital Mechanics]]

Rfc: linkfix

2008-10-31T21:34:12Z

linkfix

← Older revision		Revision as of 22:34, 31 October 2008
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	Cargo could be inserted into low-energy trajectories. These trajectories will take longer then current Hohmann transfer orbits, but will save propellant and thus allow more payload.		Cargo could be inserted into '''low-energy trajectories'''. These trajectories will take longer then current Hohmann transfer orbits, but will save propellant and thus allow more payload.
	Low cost of transport will be vital in [[~~Umanned~~ setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]].		Low cost of transport will be vital in [[Unmanned setup of a whole settlement\|setting up a colony]] and in resupplying a [[semi-autonomous colony]].

T.Neo at 16:14, 30 October 2008

2008-10-30T16:14:27Z

← Older revision		Revision as of 17:14, 30 October 2008
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	== Methods ==		== Methods ==
	*Bi-elliptic transfers		*Bi-elliptic transfers
	*The [http://www.en.wikipedia.org/wiki/~~Interplanetary_Transfer_Network~~ Interplanetary ~~Transfer~~ Network]		*The [http://www.en.wikipedia.org/wiki/Interplanetary_Transport_Network Interplanetary Transport Network]
	*Using ion thrusters/solar sails/plasma sails		*Using ion thrusters/solar sails/plasma sails