Astrophysics (Index)About


(International Solar Polar Mission, ISPM)
(space mission to observe the Sun from off the ecliptic)

Ulysses (aka International Solar Polar Mission, ISPM) was an ESA-NASA space probe aiming to observe the Sun from directions off the ecliptic, i.e., at high solar latitudes. It was launched in 1990 and used a Jupiter gravity assist to place it in an orbit ranging from 1.35 AU to 5.4 AU and an orbital inclination of around 80°, observing until 2009. Over its lifetime, it passed close to Jupiter again as well as some comets, yielding some fortuitous observation. Instruments:

Further reading:

Referenced by pages:
solar physics