[amsat-bb] Re: ILN... Is this our future ride to the moon? MM
domenico.i8cvs at tin.it
Mon Jul 6 15:02:17 PDT 2009
To get an idea about the difficulty to designe and build a transponder that
must work on the moon I suggest to carefully see the following links.
If you have problems to get the above NASA report from internet I can send a
pdf file to you or to any people is interested but it is about 4 MB long
Also the following pictures and drawings are self explanatory.
After reading both the above papers you will realize that the task is very
hard viable by any amateur team.
----- Original Message -----
From: "MM" <ka1rrw at yahoo.com>
To: <amsat-bb at amsat.org>; "Armando Mercado" <am25544 at triton.net>
Sent: Monday, July 06, 2009 2:53 PM
Subject: [amsat-bb] ILN... Is this our future ride to the moon? MM
We need to form a proposal team that can evaluate the data to find out if an
EME-Repeater is viable.
Time is short.
First ask Experts if building a transponder for the Moon is feasible with
If it were, How many Amateur radio operators would be able to afford such a
We know the are hundreds of Hams, which have used EME at one time, or
If we build a working transponder, how many more hams would have access to
Based on the number of users that could build an EME-Repeater link, we would
go ahead with the idea and take it to the next phase.
There no sense in building an EME-Repeater project if only a hundred people
would be able to access the EME-Repeater.
So if the project looks feasible and there is a big enough potential group
of Amateur Radio stations that would uses such a project, then we would
start talking to all of our contacts at NASA, ESA, RSA to see if we can get
some additional support to help with the project.
--- On Sun, 7/5/09, Armando Mercado <am25544 at triton.net> wrote:
> From: Armando Mercado <am25544 at triton.net>
> Subject: [amsat-bb] ILN... Is this our future ride to the moon?
> To: amsat-bb at amsat.org
> Date: Sunday, July 5, 2009, 2:48 PM
> The International Lunar Network appears
> to be the unmanned landers NASA is planning
> to put on the moon. The program is working to
> put 2 landers on the moon in the 2012-2014
> time frame.
> Here are some excerpts from a Request for
> Information by NASA regarding instruments
> for its International Lunar Network (ILN).
> Pay special note to the mass and power
> Is this what we are talking about putting a
> transponder on?
> 73, Armando, N8IGJ
> Date Released: Tuesday, November 18, 2008
> Source: Goddard Space Flight Center
> NASA Solicitation: Instruments for U.S. International
> Lunar Network (ILN) Lunar Missions
> Description of Anticipated Requirement
> NASA expects to emplace the first two nodes (the "anchor"
> nodes) of the ILN in the 2012-2014 timeframe with two
> additional nodes to be emplaced roughly two years later,
> depending on funds availability. All nodes will carry
> identical core instrument payloads. The ILN mission
> long lived instruments which can be operated as a network
> for six years (the anchor nodes will necessarily have to
> longer). It is anticipated that a very small amount of
> will be available to enable continuous operation through
> the lunar night.
> Concept studies for the spacecraft are now under
> at NASA's Marshall Space Flight Center working with the
> Applied Physics Laboratory (APL) of The Johns Hopkins
> University. The mission will be tightly constrained in
> mass and power. It is expected that the total available
> for all payload instruments will be approximately 15 kg,
> although the precise mass available for the payload will
> depend on the launch vehicle and other trades still being
> considered. The total available payload power will be
> approximately 15 W.
> The total budget for the ILN anchor nodes including
> development and operations is $200M. Schedule and budget
> constraints require that NASA mission planners focus on
> relatively mature instruments.
> See the following links for more info:
> (The full Request for
> http://iln.arc.nasa.gov/welcome (General info on
> (Detailed info
> on ILN... Note: large file 13MB)
> Happy reading,
> Armando, N8IGJ
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