WPLTN Technical Workshop
September 24 - 28, 2012
of the International Scientific Technical Conference WPLTN-2012
* the fact that combining methods of one-way and two-way laser ranging allows the precision of GNSS geodetic and ephemeris time support to be increased substantially, the participants of the International Scientific Technical Conference WPLTN-2012 have come to the common opinion on the following
1.2. We approve the principle of equipping all navigation space crafts both with laser retroreflector systems and receiving devices which register the time a laser pulse is received using the onboard time scale.
1.3. We recommend deploying laser stations, which are modernized to operate in one-way and two-way laser ranging mode, nearby the national GNSS synchronizers and other holders of central time scale standards.
1.4. We recommend WPLTN member-countries to give high priority status to observations of GNSS navigation spacecrafts which are equipped with retroreflector systems.
1.5. We take note that nano-gradient optical coatings have a good future in laser-ranging systems.
2.2. We approve the concept of creating geodetic spacecrafts equipped with the means of various space geodesy measurement technologies, in particular, the concept of creating a precisely calibrated, multi-functional (for the VLBI, SLR, GNSS and DORIS technologies) specialized spacecraft GRASP, which will provide collocation measurements, and we call on all WPLTN members to take all possible opportunities to participate in its creation (for example, Russia can contribute the “Blits” technology).
2.3 We acknowledge that the necessary condition for space geodesy development is the creation of new and the modernization of existing laser stations, as well as the methods of their calibration, metrological support and geodetic binding, which would ensure less than one millimeter error for both occasional and systematic cases of measurement.
3.2. A WPLTN Space collision center [SCC] is to be created in order to explore collision cases and coordinate the Trial campaign.
3.3. The Trial campaign coordinator Ben Greene (Australia) to send a program and method of observations to all WPLTN members for approval as soon as possible.
3.4. Laser methods of space debris monitoring are to be applied wherever it is possible in order to increase the precision of flow forecasting.
3.5. It should be considered that laser based system to manage space debris movement is a technologically possible project, though expensive, would require international cooperation in order to create systems of joint application.
* the fact that the main trend of GGOS improvement is the worldwide network development of those stations which collocate various space geodesy measurement technologies, the participants of the International Scientific and Technical Conference WPLTN-2012 should include an item in their agendas to actively use all their facilities to support the IGGOS project.
© 2012 IAA of RAS