Join Donate

Emily LakdawallaOctober 11, 2005

Dione encounter today

Cassini is already on its way in to a close, 500-kilometer encounter with Dione -- it's less than four hours away now, at 17:52 UTC. Here's a photo of Dione and Saturn that was taken a couple of days ago:


NASA / JPL-Caltech / SSI

October 09, 2005
1,773,315 km
CL1 and CL2 filters

The science plan is absolutely packed, with CIRS, ISS, and UVIS trading priority continuously for hours and hours, and VIMS riding along the whole time. As with the Hyperion encounter, they are doing mass determination experiments with the Radio Science antenna for a couple of hours on each side of closest approach. There are a bunch of fields and particles observations as they fly through the E ring. At closest approach, they give up on pointing, and give control over to the Radio and Plasma Wave experiment, with ISS snapping pictures willy-nilly. The crescent outbound view should be lovely and lit by Saturnshine. And, finally, they'll get their best views of Telesto throughout the mission at 20:26, from a distance of only about 10,000 kilometers (which gives you a resolution of 60 meters per pixel with the cameras).

Read more: Dione, pretty pictures, Cassini, Saturn's moons, Saturn's rings

You are here:
Emily Lakdawalla 2017 headshot square serene
Emily Lakdawalla

Solar System Specialist for The Planetary Society
Read more articles by Emily Lakdawalla

Comments & Sharing
Bill Nye and people
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

The Planetary Fund

Help advance robotic and human space exploration, defend our planet, and search for life.


"We're changing the world. Are you in?"
- CEO Bill Nye

Sign Up for Email Updates