Author Topic: Deimos and Phobos Spacecraft  (Read 41883 times)

Offline vjkane

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Re: Deimos and Phobos Spacecraft
« Reply #180 on: 01/15/2017 01:02 AM »
A presentation about the Jaxa Martian Moon mission: http://www.lpi.usra.edu/sbag/meetings/jan2017/presentations/Fujimoto.pdf
I wasn't able to listen in on the presentation.  At this point, I'm not sure if this is an approved mission or not.  At one time, it appeared to be, and NASA said it would release an AO for a US-supplied instrument.  Since then, the status seems uncertain, perhaps because JAXA is trying to find funding to build a replacement for their failed astrophysics mission.

Anyone have more information?

Offline Blackstar

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Re: Deimos and Phobos Spacecraft
« Reply #181 on: 01/15/2017 09:07 PM »
I listened in but I was preoccupied. I came away confused as well. He mentioned something about getting on the smaller launch vehicle, looking at different options like cubesats, and other things. It sounded rather up in the air, not like they have a firm launch date and funding.

Online redliox

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Re: Deimos and Phobos Spacecraft
« Reply #182 on: 03/20/2017 08:59 PM »
There may be a twist to the 'impact formation' theory of Phobos and Deimos at Mars: http://www.space.com/36132-mars-moon-phobos-rings-cycle.html
http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2916.html

The gist of it is that the two moons might have formed from different impacts.  The proof apparently is that, based on their orbits, that Deimos' orbit is too circular and doesn't match the parameters that might have formed Phobos.  Phobos' geology also, more obviously, indicates it's gone through tidal stress that Deimos.  Coupled with its decaying orbit, the thinking is that Phobos is the younger moon formed from the most recent impact on Mars whereas Deimos is the remnant from an older one, which they think there could have been up to seven of.

So the surprise is that Deimos and Phobos may only be half-brothers despite sharing similar appearances and chemistry.
"Let the trails lead where they may, I will follow."
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Online redliox

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Re: Deimos and Phobos Spacecraft
« Reply #183 on: 03/25/2017 03:02 PM »
At LPSC there were a couple of posters on the Japanese MMX Phobos spacecraft. Also at least one poster on a Phobos cubesat proposal. I took some images of them. I'll post them later, but people might want to go through the LPSC abstracts to find interesting stuff.

This is for MMX: http://www.lpi.usra.edu/meetings/lpsc2017/pdf/2086.pdf
Also the cubesat you spoke of: http://www.lpi.usra.edu/meetings/lpsc2017/pdf/1707.pdf
"Let the trails lead where they may, I will follow."
-Tigatron

Tags: Deimos Phobos Mars