Number 39, July 2006

1) FUSE Cycle 8 Call for Proposals Released
2) FUSE Operations Status
3) Senior Review 2006:  FUSE is Good to Go for Two More Years

1) FUSE Cycle 8 Call for Proposals Released

	We are pleased to announce that the Call for Proposals for FUSE Cycle 8
was released on July 14, 2006.  An estimated 7 Msec of Standard Program and 
6 Msec of Survey Program time will be available over the 18 month nominal span 
of Cycle 8.  There is the potential for a short (~6 month) additional cycle 
following Cycle 8.  The decision regarding a potential Cycle 9 Call for 
Proposals will not be made until early 2007.

	With the continued improvements in FUSE one-reaction-wheel operations 
(see the status report below) we expect to be able to support a significant 
number of long observations (>70 ksec) as well as a limited number of low 
declination targets (please see the "Guest Investigator Program Description and 
Proposal Instructions - Cycle 8" available at for details).

	Note that the proposal procedures have changed for Cycle 8 and that
they are now fully electronic for all proposers.  Proposers will need to submit 
information to two separate electronic addresses, one at NRESS (via NSPIRES) 
and the other at JHU.  Full details can be found at  

	Cycle 8 could be the final proposal opportunity for FUSE observations, 
particularly for longer observations (see item no. 3 below regarding the 2006 
NASA Senior Review)

2) FUSE Operations Status

	The first six months of 2006 have seen a steady improvement in the 
capability of FUSE in the one-reaction-wheel mode of operations. We have 
followed a path of continuous assessment and improvement, learning as we go. 
Evidence of this improvement is provided by our performance in June 2006, where 
over 1 Msec of science time was achieved, with over 65% of this being time for
primary science programs.  This would have been considered excellent 
performance even back in our original 4-wheel configuration!  We are very 
pleased with the results.

	The operations team is continuing to improve the tools used to plan
observations effectively, and we are still in search of modifications that
may improve our ability to slew between targets more robustly and possibly
open up additional regions of the sky.  Future newsletters will report on 
progress in this area.

3)  Senior Review 2006:  FUSE is Good to Go for Two More Years

The NASA Senior Science Review for 2006 has recommended funding the FUSE 
mission out through Fiscal Year 2008 (end of September 2008), in 
agreement with the preliminary guidelines of the NASA Senior Science 
Review for 2004. We are studying whether a reduced mode with a very 
different style of operations might be possible beyond 2008, but the 
future of the FUSE program after 2008 is uncertain.  Cycle 8 could be 
the final proposal opportunity for the FUSE mission.

With the increased observing efficiency achieved over the last
six months and about 18 months of new observing time to be selected, 
this is a significant opportunity for our research community.  We hope 
you will take full advantage of the capability provided by FUSE for high 
resolution far ultraviolet spectroscopy while the capability exists.

The Observer's Electronic Newsletter is published by the FUSE project and is aimed at the FUSE user community.

Editor: B-G Andersson, FUSE Guest Investigator Officer.

The FUSE Project is managed by the Johns Hopkins University's Center for Astrophysical Sciences in Baltimore, MD, for NASA's Goddard Space Flight Center. The FUSE Principal Investigator is Dr. Warren Moos, the FUSE Program Manager at JHU is Mr. Randy Ewing, and the NASA Project Scientist for FUSE is Dr. George Sonneborn.

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