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INTEGRAL AO-2 Announcement

July 17, 2003

Dear Colleague,

NASA is pleased to call to the attention of members of the
U.S. scientific community the release by the European Space Agency
(ESA) of the "INTEGRAL Announcement of Opportunity for Observing
Proposals" (AO), soliciting Guest Observing proposals for ESA's
International Gamma-Ray Astrophysics Laboratory. The subject
Announcement solicits proposals for observations to be performed
during the second 12 months of the mission. Due to the nature of the
NASA-ESA bilateral agreement, this solicitation applies only to
scientists affiliated with U.S. institutions; others are urged to
contact ESA directly. U.S. scientists may propose either as Principal
Investigators or as Co-Investigators on foreign P.I. proposals.  The
AO may be accessed directly from ESA at the following address:


NASA has instituted an INTEGRAL Coordination Facility (ICF) at the
Goddard Space Flight Center (GSFC) as a support center for INTEGRAL
activities in the U.S. Information of interest to U.S. observers, as
well as general project information, can be found at the following


A detailed description of the mission, including instrument
capabilities, and additional information pertaining to the proposal
preparation and submission procedures, is also available via links to
the INTEGRAL home page at that address. (Questions concerning
U.S. participation in the INTEGRAL AO-2 program should be addressed to
Chris.R.Shrader@gsfc.nasa.gov.)  ESA will be responsible for
conducting a peer review of all submitted proposals, including those
from U.S. investigators, and determining the associated time
allocation. Current plans call for ESA to notify proposers and NASA of
the results of the peer review during the fall of 2003.

NASA intends to make funding available for a Guest Observer (GO)
program to support the analysis, interpretation, and publication of
data obtained by U.S. proposers who are granted observing time on
INTEGRAL through the ESA AO. The level of funding available for any
approved program will depend on the total funding available, the size
and complexity of the investigation, and on the ultimate number of
U.S. investigations approved by ESA. We anticipate that approximately
$1.5M will be available for support of US Guest Observers under this
AO.  Details regarding the timing and mechanism of NASA's solicitation
for data analysis funding requests will be announced at a later date;
please do not submit a budget with your observing proposal.

For additional technical or programmatic information regarding
U.S. participation in the INTEGRAL mission, please contact:

Technical Information:	Dr. Chris Shrader
NASA Goddard Space Flight Center
Code 661
Greenbelt, MD  20771
Tel:  (301) 286-8434
Fax:  (301) 286-1684

Programmatic Information:	Dr. Donald Kniffen
					NASA Headquarters
					Code SZ
					Washington, DC  20546
					Tel:  (202) 358-0351
					Fax:  (202) 358-3096


Donald A. Kniffen
INTEGRAL Program Scientist
Structure and Evolution of the Universe
NASA Office of Space Science
A service of the
High Energy Astrophysics Science Archive Research Center (HEASARC)

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