The SECCHI Experiment on the STEREO Mission
Abstract
The Sun Earth Connection Coronal and Heliospheric Investigation SECCHI on the NASA Solar Terrestrial Relations Observatory STEREO mission is a suite of remote sensing instruments consisting of an extreme ultraviolet EUV imager two white light coronagraphs and two telescopes that comprise the heliospheric imager SECCHI will observe coronal mass ejections CMEs from their birth at the sun through the corona and into the heliosphere A complete instrument suite is being carried on each of the two STEREO spacecraft which will provide the first sampling of a CME from two vantage points The spacecraft will orbit the Sun one Ahead of the Earth and the other Behind each separating from Earth at about 22 degrees per year The varying separation means that we will have different observational capabilities as the spacecraft separate and therefore differing science goals The primary science objectives all are focused on understanding the physics of the CME process - their initiation 3D morphology propagation interaction with the interplanetary medium and space weather effects By observing the CME from multiple viewpoints with UV and coronagraphic telescopes and by combining these observations with radio and in-situ observations from the other instruments on STEREO as well as from other satellites and ground based observatories operating at the same time answers to some of the outstanding questions will be obtained STEREO follows the very successful SOHO mission SOHO s success was primarily due to the highly complementary nature of the instruments but it was
- Publication:
-
36th COSPAR Scientific Assembly
- Pub Date:
- 2006
- Bibcode:
- 2006cosp...36..870H