****************************************************************************** dorismail 24-Jan-2020 09:02:42 Message No 1215 ****************************************************************************** Author: Heike Peter Subject: COSPAR Scientific Assembly 2020 - Panel on Satellite Dynamics / B2 : COSPAR 2020, 43rd Scientific Assembly August 15-22, 2020, Sydney, Australia https://www.cospar-assembly.org http://www.cospar2020.org Dear colleagues The next COSPAR meeting will attract about 3000 scientists and engineers from the world over. More than 100 symposia will cover all areas of space science: Space studies of the Earth’s surface, meteorology and climate, Space studies of the Earth-Moon, Planets and small bodies of the solar system, Space studies of the upper atmospheres of the Earth and Planets including reference atmosphere, Space plasmas in the Solar system, including planetary magnetospheres, research in astrophysics from space, life sciences as related to space, material sciences in space, fundamental physics in space, and several Panel meetings. Interdisciplinary lectures will also be given by key scientists and several associated events are planned, such as a meeting organized by Elsevier for young scientists to help them publish or review scientific articles. In particular, we would like to draw the attention to a session, organized by the COSPAR Panel on Satellite Dynamics together with sub-Commission B2 “International Coordination of Space Techniques for Geodesy” (identical to IAG Commission 1 on Reference Frames). The title of the session is "Satellite Dynamics - new Developments and Challenges for Earth and Solar System Sciences". The aim of the Panel on Satellite Dynamics is to support activities related to the detailed description of the motion of artificial celestial bodies. This goal should be achieved by improving the current theories of motion and by evaluating their determining forces in a more sophisticated way. Detailed theoretical understanding of the dynamics of satellites should coincide with the results of precise tracking in order to obtain the most precise knowledge possible of the orbit and the corresponding orbital positions. The scope of the Panel on Satellite Dynamics entails the positioning of a wide range of objects in space, including Earth orbiting satellites for Earth observation such as GRACE-FO, Swarm, Jason-3, and the Copernicus Sentinels, and navigation satellite systems such as GPS, GLONASS, Galileo, Beidou, QZSS or tracking systems such as SLR and DORIS. In addition, positioning plays an important role in the success of the continuously growing number of today's and tomorrow’s missions to explore the Solar System. Recent and future missions have to deal with complex trajectories and innovative propulsion and breaking techniques to visit multiple bodies (e.g., Cassini, Dawn, JUICE), small unconventional bodies (e.g., Rosetta, OSIRIS-REx, Lucy), and harsh and unknown environmental conditions challenging our technical capabilities (e.g., Messenger, Venus Express, BepiColombo, JUNO). Both advances in the modeling of spacecraft dynamics and the theoretical understanding of space observables (e.g., range, Doppler, VLBI, optical) are required to allow for a more efficient exploration and a deeper understanding of our Solar System. Limiting errors in Precise Orbit Determination (solar radiation pressure, time variable gravity fields, phase center corrections, attitude variations, etc...) are of critical interest for many stakeholders. Moreover, formations of satellites are being realized and proposed for Earth observation and fundamental sciences, that impose very severe constraints on (relative) positioning and orbit and attitude control solutions (e.g. micro-propulsion). Mini-satellites and cubesats also represent a new frontier for both Earth and planetary exploration, posing new challenges as well as new opportunities. Satellite orbit determination requires the availability of tracking systems, well established reference frames and accurate station coordinate solutions, detailed force and satellite models, and high-precision time and frequency standards. Contributions covering all recent developments and plans in ground, satellite or probe positioning and navigation are solicited as well as contributions on current progress on establishment, maintenance and improvement of reference systems in Geosciences. Important dates: 14 February 2020: Abstract submission deadline 16 May 2020: end of early registration fees and presenter registration deadline Heike Peter, Adrian Jäggi Convenors of the Satellite Dynamic Panel/B2 session -- ---------------------------------------------- Dr. Heike Peter Senior Consultant PosiTim UG Germany Tel.: +49 2255 9239616 Fax: +49 2255 9239615 Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr