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International Space Flight (ESA, Russia, China and others) => Japanese Launchers => Topic started by: Galactic Penguin SST on 04/20/2015 04:09 AM

Title: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: Galactic Penguin SST on 04/20/2015 04:09 AM
Hadn't heard of this project before, but there are multiple reports pointing to it (http://www.japantimes.co.jp/news/2015/04/19/national/jaxa-plans-japans-first-moon-shot-in-2018/) winning one of the small satellite project slot and flying on the 4th Epsilon rocket in 2018.

Anyone got better materials on this?
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: tul on 04/20/2015 01:56 PM
It is supposed to land in a crashed moon cave.
http://www.lcpm10.caltech.edu/pdf/session-1/6_LCPM2013-S1-JapanPlanet-JK+HYb.pdf
http://robotics.estec.esa.int/i-SAIRAS/isairas2012/Papers/Session%2010C/10C_04_harada.pdf
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: notsorandom on 04/20/2015 02:45 PM
Landing in one of the skylights of a lunar lava tube is certainly an audacious thing.  Presumably there would be less sky visible to the lander which brings up two questions. Will the probe receive enough light for solar panels? Also rock tends to be pretty effective in stopping radio waves. Communications, especially without a relay orbiter may be very challenging.
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: The Amazing Catstronaut on 04/20/2015 05:11 PM
Agreed - are they putting an RTG on it? Or does this thing have a low expected lifespan and they've just given it enough batteries to last for a short duration/cover the intervals between sun exposure?
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: sanman on 04/22/2015 10:48 PM
Here's one more report:

http://www.spaceflightinsider.com/organizations/jaxa/japans-jaxa-to-attempt-lunar-landing-in-2018/
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: plutogno on 04/24/2015 06:48 PM
a Japanese presentation
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: Fuji on 05/01/2015 09:24 PM
Official presentation material. (Japanese)
http://www.mext.go.jp/b_menu/shingi/gijyutu/gijyutu2/071/shiryo/__icsFiles/afieldfile/2015/04/22/1356906_5.pdf

Interestingly, the Solar Power Sail Mission to Jupiter Trojan is selected one of other mission candidate. Good to hear move a step closer to.

Post Hayabusa-2 project
-Small class 1  is selected SLIM.

-Medium class 1 candidate are Solar Power Sail Mission to Jupiter Trojan and SOLAR-C or WISH or Lite Bird.
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: savuporo on 10/02/2015 08:22 PM
Another a bit more recent abstract

http://www.dlr.de/pf/Portaldata/6/Resources/lcpm/abstracts/Abstract_Sakai_S.pdf
Quote
SLIM was proposed for the next ISAS/JAXA small scientific mission using Epsilon rocket, and was
just selected as a finalist in Jan., 2015.

How does that selection process work and what else is in the final round ?
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: savuporo on 09/27/2016 03:25 PM
This one is still around:
https://twitter.com/RussianSpaceWeb/status/780789345288544256
Title: Re: SLIM - new Japanese small lunar lander to fly in 2020
Post by: Fuji on 09/18/2017 02:17 AM
Launch schedule is slipped to 2020 and rocket is also changed to H-IIA.

SLIM is changing the design now. Considering to change the landing leg to fewer two design (not baselined yet).

http://www.isas.jaxa.jp/home/slim/SLIM/2017SLIMpos.pdf
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: Nibb31 on 09/18/2017 05:54 AM
The landing method looks Kerbal, but if it works, it might be a good method for landing cargo or base modules.
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: Llian Rhydderch on 01/19/2018 10:02 PM
Is there a link where the Japan Team HAKUTO is being discussed?  I'm not finding the discussion and Wikipedia (https://en.wikipedia.org/wiki/Polar_Satellite_Launch_Vehicle#Planned_launches) is reporting that lunar Rover is still scheduled for an ISRO PSLV launch in 1Q2018.
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: TrevorMonty on 01/19/2018 10:50 PM
The rover was going to fly in Indus lander, but that isn't going to happen, funding a schedule issues with Indus team. Moon Express MX1 might be its best chance of getting moon this year.
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: Phil Stooke on 01/20/2018 12:12 AM
Hakuto has arrangements with Astrobotic as well as Team Indus.  Right now (stated last week at the lunar lander workshop at NASA Ames) Indus is still hoping to raise the money and fly later in the year but presumably not as part of GLXP, barring another change in the deadline. 

To get back to SLIM, it is still being worked on for flight in c. 2020, and landing sites were discussed at the same workshop, with a young lava flow near the Marius Hills skylight being a top contender.
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: Phil Stooke on 08/04/2018 05:13 PM
http://the-japan-news.com/news/article/0004635427 (http://the-japan-news.com/news/article/0004635427)

SLIM moved to 2021 (fiscal year), and a landing site in Mare Nectaris is stated.  This one is new to me, and I look forward to learning more about the site.
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: Fuji on 08/08/2018 10:15 PM
Design is changed again.
http://www.jaxa.jp/press/2018/08/files/20180802_SLIM.pdf
Title: Re: SLIM - new Japanese small lunar lander to fly in 2018?
Post by: Phil Stooke on 09/22/2018 05:45 AM
That's a good PDF file, and it includes information about the landing site.  Not in Mare Nectaris but on its edge, just south of the big youngish crater Theophilus.  My take on it:  The Nectaris impact excavates some olivine from deep in the crust, and at first it was exposed in massifs of the inner basin ring (equivalent to the Rook Mountains at Orientale).  Later, Theophilus is dug into those massifs and some of the olivine is deposited in its ejecta.  A little fresh crater which is their landing target has made a nice fresh exposure of it for analysis.