Solar Sail Attitude Control: There are several options for performing attitude control. Such booms should have a specific mass of less than 100 g/m. Lightweight booms: Developments of lightweight booms with a length approaching 100 m are required. Solar Sail Deployment: The development of a lightweight deployment structure for a very large (~30 000 m²) sail is required. The optical properties of the sail must also be preserved during the sail phase. Solar Sail Material: A lightweight material needs to be developed with the required optical properties to reduce system mass and requirements. The main developments required for such a mission involve the use of a solar sail and are outlined below: The SPO Technology Reference Study is intended to identify the technologies required for a mission to a solar polar orbit. The preliminary mass budget is given in the table below, outlining the spacecraft and payload masses. The characteristics of the sail are given in the table below. The preliminary concept for SPO employs a square solar sail with a total area of approximately 25 000 m². At this point the sail will be detached in order to perform undisturbed scientific measurements. After about 4 years the SPO spacecraft will achieve an inclination of approximately 83 degrees in the ecliptic coordinate frame. The spacecraft will utilize a solar sail to lower its orbit to less than 0.5 AU before raising its inclination. The Solar Polar Orbiter consists of a single spacecraft, launched on a Soyuz Fregat 2B from Kourou, French Guiana.
#Lanota solar orbit only vocals full#
follow the evolution of solar structures over a full solar rotation.determine magnetic structures and convection patterns in polar regions.link particle and field observations to images of the Sun, corona, and heliosphere at all latitudes.discover the sources, longitudinal structure, rotational curvature and time variability of coronal features.image the global extent and dynamic effects of coronal mass ejections.The Solar Polar Orbiter has the following scientific objectives:
The Solar Polar Orbiter (SPO) Technology Reference Study (TRS) examines the feasibility of a mission to obtain true solar polar orbit at an altitude of less than 0.5 AU to perform remote sensing of the Sun and in situ measurements of the surrounding environment.
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