Number 22 September 2002


1) New Procedures for Submitting the Cover Page for FUSE Proposals
2) Cycle 4 updates posted
3) CalFUSE v2.2.1 Is Here
4) Magnetic-Axis Controller Parameter Updates a Success
5) SPIE papers on two-wheel operations and zero-gyro mode plans available

************* Reminder: FUSE cycle 4 proposals are due October 10 *************

1) New Procedures for Submitting the Cover Page for FUSE Proposals

       This year NASA Peer Review Services has implemented a new system for 
managing proposal submissions, including cover pages.  This system (called
SYS-EYFUS) is used by several offices at NASA HQ, not just the Office of Space
Sciences.  Potential FUSE proposers need to be aware of changes in cover page 
procedures.  The most important items are summarized below.  Complete details 
are available on the FUSE GI web site at:


    All proposers (PI and Co-Investigators) need to be registered users of
    SYS-EYFUS (  Please notify your Co-Is of the
    need to register with the new system.  The cover page information can be 
    edited as often as necessary up to the proposal submission deadline.


    The printed FUSE proposal cover page will contain a box for the name and
    signature of an institutional authorizing official.  
    The FUSE NRA clearly states that no institutional signature is required
    until a budget is submitted following selection of scientific proposals.
    It was not possible to remove this signature box from the FUSE cover page
    for Cycle 4.


    The NASA proposal numbering system is different from that in previous
    years.  In particular, the FUSE cover page has the proposal number in bold
    print in the upper right hand corner (e.g. FUSE4-0000-0001, corresponding
    to proposal number 1).  The NRA (Section C.2.2) describes the proposal
    numbering in the previous format (e.g. NRA-02-03-OSS-189 for proposal
    number 189).  For the template file, please extract the last three digits
    of the proposal number (in the above case 001).

The cover page must be printed, signed by the PI, and used as the first two
pages of each submitted proposal.

2) Cycle 4 updates posted

        Please note that we have posted several clarifications and minor 
updates for the cycle 4 proposal process at  Note that the foreseen,
possible, update to the NRA has not been necessary.  Hence, the NRA as released
on July 31 remains valid in its entirety.

3)  CalFUSE v2.2.1 Is Here

        Version v2.2.1 of the CalFUSE pipeline is available for general use.
This is the version now being used to process all FUSE data for delivery to 
MAST.  The new version of CalFUSE is similar to v2.1.6, released in June.  The 
principal changes are a time-dependent set of flux-calibration files, a 
jitter-correction module, and a new scaling algorithm that produces better 
background models.  We've also corrected some bugs that troubled Linux users.  
For more information or to download the new pipeline, see the CalFUSE Home 
Page at .

4) Magnetic-Axis Controller Parameter Updates a Success

        As we discussed in the June 2002 newsletter, the parameters 
controlling the pointing along the magnetically controlled axis required a 
modification in order to correct for a low-frequency component of motion 
with a period of half an orbit.  We are pleased to report that updated 
parameter were uplinked to the spacecraft in early September and immediately 
resulted in the elimination of the unwanted motion. Jitter along the magnetic 
axis remains at ~0.6", but the larger excursions, complicating MDRS and HIRS 
observations , have been eliminated. 

5) SPIE papers on two-wheel operations and zero-gyro mode plans available

        For those interested in learning more about how FUSE operates with only
two reaction wheels, two new papers have been posted on the FUSE website
(  The first of the two papers
covers FUSE operations in general, and the second describes the technical 
aspects of two-wheel operations and our plans for operating without gyros.

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 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 Project 
Manager at JHU is Mr. J.B. Joyce, and the NASA Project Scientist for FUSE 
is Dr. George Sonneborn.

Further information about the FUSE Guest Investigator Program can  be
obtained from:  Dr. George Sonneborn;

Retour à la page d'accueil