See also http://virgo.so.estec.esa.nl/
See also http://soi.stanford.edu/
See also http://orpheus.nascom.nasa.gov/cds/home/recovery/recovery.html
See http://umbra.nascom.nasa.gov/eit/
See http://cfa-www.harvard.edu/uvcs/
See http://lasco-www.nrl.navy.mil/
See also http://www.srl.utu.fi/projects/erne/erne.html