Solar and Heliospheric Observatory (SOHO) is a spacecraft laboratory project of ESA and NASA, heading its instruments to the Sun, while orbiting the Sun-Earth Lagrange L1 point. Its mission is to study the Sun from its deep core to the outer corona and the solar wind.
SOHO spacecraft is currently experiencing a problem with the motor controlling the High Gain Antenna and some predicted losts of data coverage for 1-2 weeks every 90 days when the spacecraft performs flip-manoeuvr. There is a list of the expected "keyhole" periods.
Latest Sun corona images from SOHO LASCO instrument:
(External links to LASCO images open in a new browser window.)
Latest images of the Sun from SOHO EIT instrument:
(External links to EIT images open in a new browser window.)
Latest L1 point data plots from SOHO CELIAS instruments:
(External links to plots and descriptions open in a new browser window.)
SDO | Space Weather | STEREO
Solar and Heliospheric Observatory, sohowww.nascom.nasa.gov
GIF movies courtesy of the LASCO/NRL SOHO team, lasco-www.nrl.navy.mil
Proton Monitor data plots courtesy of CELIAS/MTOF experiment on the Solar Heliospheric Observatory (SOHO) spacecraft, space.umd.edu/pm
ERNE Proton and Helium data by Space Research Laboratory at University of Turku, Finland, srl.utu.fi/erne_data