The SSA Space Weather Coordination Centre (SSCC) handles the day-to-day operation of the service network and provides the first level user support. It relies on the Expert Service Centres forming the
federated element of the SWE Service Network
Spacecraft Solar Ecliptic - A coordinatesystem used for deep space spacecraft, for example Helios. - X axis fromspacecraft to Sun. Z axis normal to ecliptic plane, positive northward.Note: Angle betwe
en normals to ecliptic and to Helios orbit plane ~ 0.25deg.
Selenocentric Solar Ecliptic. The X axispoints from the center of the Earth's moon to the sun, the Z axis is normalto the ecliptic plane, positive northward. And the Y axis completes theright-handed s
et of axes.
A red giant of spectral type S whose spectrum is dominated by molecular bands arising from zirconium oxide (ZrO). S stars also have strong cyanogen bands and contain spectral lines of lithium and tech
netium. Almost all S stars are long-period variables.
A red giant of spectral type S whose spectrum is dominated by molecular bands arising from zirconium oxide (ZrO). S stars also have strong cyanogen bands and contain spectral lines of lithium and tech
netium. Almost all S stars are long-period variables.
A red giant of spectral type S whose spectrum is dominated by molecular bands arising from zirconium oxide (ZrO). S stars also have strong cyanogen bands and contain spectral lines of lithium and tech
netium. Almost all S stars are long-period variables.
A red giant of spectral type S whose spectrum is dominated by molecular bands arising from zirconium oxide (ZrO). S stars also have strong cyanogen bands and contain spectral lines of lithium and tech
netium. Almost all S stars are long-period variables.