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Titan + Enceladus = Goose bumps, Tomorrow is just ahead!
ustrax
post Mar 12 2007, 03:22 PM
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I thought about a new thread since there are possibilities of an incredible future mission.

The idea is to know what would people like to see on a mission like that, nature of probes, instruments, experiments...you name it! smile.gif


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Juramike
post Mar 15 2007, 08:39 PM
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In order to deliver a box into Titan orbit or onto it's surface/lower atmosphere, could you perform two aerobraking/aerocapture maneuvers? (This was proposed by Zvezdichko for Jupiter orbit in the Jupiter forum and seems interesting for Titan) A potential scheme is shown below.

Advantages might be to be able to launch directly and often from Earth orbit (a la New Horizons) or with a gravity assist from Jupiter (in which case timing becomes key).

Risk of hitting material in the ring plane would be minimized since the probe would be passing in the atmosphere in this area. Ring material would not in a stable orbit at this low altitude.

Another advantage would be that minimal thrust would be needed for orbital insertion (either Saturn or Titan), one would use the atmospheres of both for slowing the box down. (The atmospheres should be pretty well-studied from analysis of Cassini data)



(Please forgive my obvious naivite with orbital mechanics and Powerpoint drawings)

-Mike



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JRehling
post Mar 15 2007, 08:57 PM
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QUOTE (Juramike @ Mar 15 2007, 01:39 PM) *
In order to deliver a box into Titan orbit or onto it's surface/lower atmosphere, could you perform two aerobraking/aerocapture maneuvers? (This was proposed by Zvezdichko for Jupiter orbit in the Jupiter forum and seems interesting for Titan) A potential scheme is shown below.

Advantages might be to be able to launch directly and often from Earth orbit (a la New Horizons) or with a gravity assist from Jupiter (in which case timing becomes key).


I like it -- but the potential for bending the path around Saturn by the needed amount seems wishful. It seems to me that without a lot of chemical engine use, the intersect point with Saturn would be at very high latitudes and bounce it back out while still at high latitudes. In essence, the path needs to bend 270 degrees from cruise to Titan entry, and I'm not sure that the specified plan would do that. A lot of propellant would be required in any case. This situation would be eased if things stayed more in the ring plane so that an arbitrarily lower "bend" would be required.
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Posts in this topic
- ustrax   Titan + Enceladus = Goose bumps   Mar 12 2007, 03:22 PM
- - Juramike   In order to deliver a box into Titan orbit or onto...   Mar 15 2007, 08:39 PM
|- - JRehling   QUOTE (Juramike @ Mar 15 2007, 01:39 PM) ...   Mar 15 2007, 08:57 PM
- - Juramike   QUOTE (belleraphon1 @ Mar 8 2007, 07:01 P...   Mar 15 2007, 08:59 PM
|- - mchan   QUOTE (Juramike @ Mar 15 2007, 01:59 PM) ...   Mar 16 2007, 04:30 AM
|- - Greg Hullender   QUOTE (Juramike @ Mar 15 2007, 01:59 PM) ...   Mar 16 2007, 04:01 PM
|- - JRehling   QUOTE (Greg Hullender @ Mar 16 2007, 09:0...   Mar 16 2007, 04:47 PM
|- - Edward Schmitz   QUOTE (JRehling @ Mar 16 2007, 09:47 AM) ...   Mar 16 2007, 06:35 PM
|- - Rob Pinnegar   QUOTE (Edward Schmitz @ Mar 16 2007, 12:3...   Mar 16 2007, 07:13 PM
- - Edward Schmitz   she talks of acetylene icebergs - but acetylene si...   Mar 16 2007, 04:42 PM
|- - centsworth_II   QUOTE (Edward Schmitz @ Mar 16 2007, 12:4...   Mar 16 2007, 05:16 PM
- - Edward Schmitz   If Saturn was in deep space (not in orbit around t...   Mar 16 2007, 10:36 PM
- - Juramike   Dear Ed, Are you talking about a second Saturn en...   Mar 16 2007, 11:01 PM
- - Edward Schmitz   We were discusing escape of a probe from the satur...   Mar 20 2007, 04:28 PM
- - Greg Hullender   You only have to reach the Sun-Saturn L1 point; fr...   Mar 20 2007, 04:50 PM
|- - ustrax   QUOTE (Greg Hullender @ Mar 20 2007, 04:5...   Mar 21 2007, 04:16 PM
- - PhilCo126   Today's Sky at Night: The Fountains of Encelad...   Mar 14 2009, 12:33 PM
- - lyford   Kind of a silly aside, but the built in Mac spell ...   Mar 30 2009, 03:12 AM
- - Shaka   ...of course, in Mac spell. But the more compellin...   Mar 30 2009, 06:06 AM
- - stevesliva   sel. With the second syllable accented, it seems...   Mar 30 2009, 03:26 PM


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