Subject: [DPS Members] DPS Mailing #07-09: HST Servicing Priorities,

April 30th 2007

   1)  Hubble Servicing Mission Priorities: Input needed
   2)  Federal Relations Subcommittee Update
   3)  NASA Notices of Intent
   4)  Reminder: NASA Planetary Science Summer School



Hubble Space Telescope Users:

During the upcoming SM4 Hubble repair mission, NASA expects to have
enough time to install the two new instruments, COS & WFC3, replace
batteries and gyros, and do repairs on *ONE* more instrument.  The
choice for the instrument to be repaired is STIS or ACS, which
recently suffered a failure of its backup electronics & is now only
partially operational.  Based on scientific considerations, which
instrument, ACS or STIS, do you think should have the higher priority
for repair from the viewpoint of planetary Hubble users?

Planetary science users of the Hubble Space Telescope are invited to
write to Phil Nicholson,, who sits on the
Space Telescope Users Committee, It would be useful if you could
comment *BRIEFLY* on the scientific rationale for your preference, but
even a simple vote might be useful.

In support of this activity, STScI has constructed a web page

collecting information on the technical capabilities of ACS, COS, STIS
and WFC3.  Note that if ACS is repaired it is very likely that only
the WFC will be fixed, not the HRC, which has separate electronics.

Please reply to Phil within the next week; the STUC will meet on May 3
and then make a formal response to the HST project and the STScI
Director no later than May 15 2007.



A few items of interest have recently been added to the DPS FRS web
site (

- FY08 President's NASA Budget Request

- FRS Contact List for Congressional Science Committees, OMB, and OSTP

- A recent article by Mike Griffin that appeared in Aviation Week



I would like to call your attention to the need to respond to
deadlines for Notices of Intent (NOI) for NASA proposals.  Although
you are not required to submit an NOI in order to propose to a
research program or data analysis program, it is sound practice.  Not
only does it help your NASA officials organize a qualified review
panel, but also it serves an even more important function.  The
individuals, who are managing these programs at Headquarters, use the
number of NOIs to argue to acquire the funding for the individual
programs.  If you have let deadlines pass, I recommend that you send a
note that includes the title and area of your planned proposal to the
NASA Point of Contact that is designated in ROSES to help them defend your interest.

Reta Beebe



Reminder: Applications are due May 15, 2007, for NASA's 19th Annual
Planetary Science Summer School, which will hold two sessions this
summer, July 23-27 and August 6-10, at the Jet Propulsion Laboratory,
Pasadena, California.

For further information and to fill out an application, visit or contact Ms. Anita M. Sohus,
Jet Propulsion Laboratory, M/S 111-B29,4800 Oak Grove Drive, Pasadena,
CA 91109; phone 818-354-6613; e-mail


Send submissions to:
John Spencer, DPS Secretary (