Solar, Cosmic Ray and Environmental physics (SCoRE) for/with ASTROD and ASTROD I
Abstract
ASTROD Astrodynamical Space Test of Relativity using Optical Devices is a proposed three spacecraft drag-free deep-space laser ranging mission Two spacecraft would be placed in distinct solar orbits between 0 77 AU and 1 32 AU from the Sun and the third spacecraft would be placed at either L1 or L2 From the precise determination of the spacecraft orbits the solar quadrupole moment parameter could be determined to 0 3-1 times 10 -10 from the difference in clockwise and counterclockwise interferometry measurements the solar Lense-Thirring effect and hence solar angular momentum could be measured to 1 times 10 -5 These measurements would also place strict constraints on models of solar rotation and the interior structure of the Sun Further the high precision of ASTROD interferometry combined with the eccentric spacecraft orbits would result in higher sensitivity to solar g-modes than any other mission current or proposed ASTROD I is a first step towards the development of ASTROD In ASTROD I laser light would be shone between a single drag-free spacecraft placed in a solar orbit between 0 5-1 04 AU from the Sun and Earth laser stations ASTROD I will allow an improvement in the accuracy of the determination of the solar quadrupole moment parameter to 3 times 10 -9 In this paper we discuss the possibilities for solar cosmic ray and space weather studies using ASTROD and ASTROD I using both the science instruments and monitors included in the payload Although these studies are similar to those that could be
- Publication:
-
36th COSPAR Scientific Assembly
- Pub Date:
- 2006
- Bibcode:
- 2006cosp...36.1605N