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<DIV><FONT face=Arial size=2>Greetings cislunar participants!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>It's time to start gearing up for the May meeting
in Athens. I'm pretty sure we can get two days of space for a productive
meeting. While much of the Toulouse meeting was devoted to the SCPS
updates, I'm looking to spend a lot of time in Athens moving forward on the
Green book and candidate protocols.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>For the Green book I think we need to:</FONT></DIV>
<DIV><FONT face=Arial size=2> 1) revise the current draft to make it
more of an architecture recommendation</FONT></DIV>
<DIV><FONT face=Arial size=2> 2) (in support of (1)): add one or
more 'mission scenarios' against which to beat the proposed architectures /
protocols.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm hoping that the information </FONT><FONT
face=Arial size=2>NASA has recently released regarding the Lunar Reconnaissance
Orbiter (LRO) and some elements of the Crew Exploration Vehicle (CEV) and Crew
Transportation System (CTS) [see below] will be helpful in firming up the green
book. I'm still going through the files, but there doesn't seem to be a
publicly available 'reference mission scenario', though one can glean some
parameters (excerpts below).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'd like to set up a telecon late this week / early
next week to talk about an agenda for Athens and whether the above changes to
the green book are the right way to go. Attached is a spreadsheet with
times and places for your name, email, phone, and when you're
available. Please mark the sheet and get responses to me by Thursday
morning and I'll set up a teleconference bridge. If you can't make any of
the times, please let me know that too.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Best Regards and hope to talk to you
soon,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV> <FONT face=Arial
size=2>--keith</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>==================================</FONT></DIV>
<DIV><FONT face=Arial size=2>LRO-Related<BR><BR>NASA RFI for LRO: </FONT><A
href="http://www.spaceref.com/news/viewsr.html?pid=15082"><FONT face=Arial
size=2>http://www.spaceref.com/news/viewsr.html?pid=15082</FONT></A><BR><BR><A
href="http://exploration.arc.nasa.gov/attachments/RFIFocusAreas1.doc"><FONT
face=Arial
size=2>http://exploration.arc.nasa.gov/attachments/RFIFocusAreas1.doc</FONT></A><BR><BR><FONT
face=Arial size=2>The Lunar Reconnaissance Orbiter (LRO) mission will conduct
measurement and investigations of the lunar surface and environment.
Primary objectives include high resolution topographic mapping of the surface,
characterization of the lunar radiation environment and investigation of
potential in-situ resource concentrations. LRO’s daily data volume is
approximately 450 Gb/day. LRO will maintain a 50 km lunar polar orbit for
a period of 1 year following commissioning, with the potential for up to 4 years
of extended mission in a low-maintenance orbit. Possible extended mission
scenarios include additional measurement collection and <FONT
color=#ff0000>proximity relay cross-support</FONT> for follow-on RLEP and
international missions.<BR><BR>=======================<BR><BR>NASA Exploration
Office Home: </FONT><A href="http://exploration.nasa.gov/"><FONT face=Arial
size=2>http://exploration.nasa.gov/</FONT></A><BR><BR><FONT face=Arial
size=2> NASA Crew Transportation System (CTS) Requirements
</FONT><A href="http://exploration.nasa.gov/documents/documents.html#req"><FONT
face=Arial
size=2>http://exploration.nasa.gov/documents/documents.html#req</FONT></A><BR><BR><FONT
face=Arial size=2>ESS0160 The Exploration System of Systems shall conduct human
exploration on the lunar surface<BR>with a threshold of 4 crew members, and an
objective of 6 crew members (TBR-15).<BR>Rationale : A 4 person crew is the
minimum number required to demonstrate operations concepts for<BR>exploring more
distant destinations such as Mars. A 4 person crew (threshold) allows
</FONT><FONT face=Arial><FONT size=2><FONT color=#ff0000>two EVA teams
(2<BR>crew per team) to operate simultaneously or in series while providing the
capability for operational<BR>assistance from the non-EVA crew</FONT>. A 6
person crew (objective) represents the most likely Mars<BR>exploration crew
size, based on previous studies. However, since human rated launch capability is
likely<BR>to be a limiting factor on CEV capability, 6 person crew size is
carried as an objective only. Lower level<BR>requirements for each element will
specify the capability to operate with fewer than 4 or 6 crew.
Human<BR>exploration includes the use of robotic elements as part of the
system.<BR><BR>Draft CEV RFP: </FONT></FONT><A
href="http://prod.nais.nasa.gov/cgi-bin/eps/sol.cgi?acqid=113638#Draft%20Document"><FONT
face=Arial
size=2>http://prod.nais.nasa.gov/cgi-bin/eps/sol.cgi?acqid=113638#Draft%20Document</FONT></A><BR></DIV>
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