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SGF
Papers
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| In
October 2005 the SGF hosted the ILRS Technical Workshop.
Visit here for the
proceedings. |
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The
Space Geodesy Facility (SGF) exists to support
geodetic and geophysical
research through satellite tracking data and related products.
It is operated as one of the
Research Facilities of the Natural
Environment Research
Council (NERC),
which funds the
facility in collaboration with the Ministry of Defence. Facility staff
are based at
Herstmonceux
in East Sussex in the grounds of the Bader International Study
Centre (BISC).
Oversight
of the work of the Facility is the responsibility of the
S&F-appointed NERC Space Geodesy Steering Committee
(NSGSC).
On
site at Herstmonceux is a
state-of-the-art satellite laser ranging (SLR) system,
permanently
operating Global Navigation Satellite Systems (GPS
and GLONASS)
receivers, an absolute gravimeter and meteorological and
local
water-table monitoring equipment. The station
is
part of global SLR
and GNSS networks,
and is registered both with the
International Laser
Ranging Service (ILRS)
as an Operational
SLR Station and with the International GNSS Service
(IGS)
as an IGS site. The SGF GNSS data is also archived
and made
available through BIGF,
the NERC-funded British Isles GNSS Facility. In addition, one SGF
receiver (HERT), as part of the EUREF network, is also a
EUREF
Real-Time data-provider,
streaming data
directly into the internet for rapid
re-broadcast for general real-time navigational
applications. Also hosted on-site is one of the Ordnance Survey
(OS) GeoNet
'zero-order' GNSS reference stations, named HERO; once up to 12
or so of these sites are
established in the British Isles, GeoNet will become the new definition
of ETRS89 for GB.
The
Facility has been appointed by the
Governing
Board of the ILRS as one of the eight ILRS Analysis
Centres.
The SGF AC daily and weekly
submits coordinate and Earth orientation parameter solutions to the
ILRS Combination Centers at
ASI and DGFI, in support of international and multi-technique
efforts
to maintain the terrestrial reference frame and support rapid EOP
determination.
The work of the
SGF
should
be seen in the context of the fledgeling
Global Geodetic Observing System GGOS
of the International Association of Geodesy, IAG.
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