There was a spectacular night launch onboard a Delta 7925 from Cape Canaveral launch pad LC17B last night (26 Oct 2006) at 0052 UTC. The rocket carried two solar science spacecraft, Stereo A (2006-47A/29510) and Stereo B (2006-47B/29511) into orbit.STEREO's are nearly identical twin, golf cart-sized spacecraft that will make observations to help researchers construct the first-ever three-dimensional views of the sun. The images will show the star's stormy environment and its effects on the inner solar system, vital data for understanding how the sun creates space weather."
Communications package (X-Band), These are not exact freqs for each spacecraft listed below. The RF telecomm hardware on each spacecraft is identical except for their uplink and downlink frequencies. Downlink 8440 MHz, Uplink 7189 MHz, Data Format CCSDS.
You can learn more about these spacecraft and mission at
http://www.nasa.gov/mission_pages/stereo/main/index.html
