U.S. Study Group 7 (Science
Services)
The
International Telecommunication Advisory Committee -
Radiocommunication sector (ITAC-R) US preparatory group for
science service issues in the International Telecommunication Union
- Radiocommunication sector (ITU-R) Study Group 7. "Science
services" refer to the standard frequency and time signal, space research,
space operation, Earth exploration-satellite, meteorological satellite
(MetSat), meteorological aids (MetAids) and radio astronomy services.
Systems for space operation, space research,
Earth exploration and meteorology, including the related use of links in the
inter-satellite service; radio astronomy and radar astronomy; dissemination,
reception and coordination of standard-frequency and time-signal (SFTS)
services, including the application of satellite techniques, on a worldwide
basis are all under the purview of ITU-R Study Group 7.
US Study Group 7 is organized along parallel
lines to ITU-R Study Group 7 having four working parties:
WP 7A covers standard frequency and time signal
services, both terrestrial and satellite. Its scope includes the
dissemination, reception and exchange of standard frequency and time
signals and coordination of these services, including the application of
satellite techniques on a worldwide basis. WP 7A maintains TF Series
ITU-R Recommendations.
WP 7B is responsible for space operation, space
research, Earth exploration-satellite telemetry, and MetSat telemetry.
It studies communication systems for use with manned and unmanned
spacecraft; communication links between planetary bodies; the use of
data relay satellites; and the transmission and reception of
telecommand, tracking and telemetry data. WP 7B maintains SA Series
ITU-R Recommendations.
WP 7C covers applications in the Earth
exploration-satellite service (EESS), both active and passive, systems
of the MetSat and MetAids services, as well as space research sensors,
including planetary sensors. WP 7C maintains RS Series ITU-R
Recommendations.
WP 7D covers the radio astronomy service. Its scope
includes radio astronomy and radar astronomy sensors, both Earth-based
and spacebased, including space-VLBI. WP 7D maintains RA Series ITU-R
Recommendations.
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