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A CORONAGRAPH FOR THE QUAFF MISSION: Q-COR. Philippe Lamy Laboratoire d’Astrophysique de Marseille. CORONAGRAPH HERITAGE. LASCO-C2 LASCO-C3 STEREO-KCOR. LASCO C2. Field of View: 1.5 -6 .0 R Sensitivity: 2·10 7 2·10 10 B . LASCO C3. Field of view: 3.7 -30 R
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A CORONAGRAPH FOR THE QUAFF MISSION: Q-COR Philippe Lamy Laboratoire d’Astrophysique de Marseille Frankfurt - 09 December 2004
CORONAGRAPH HERITAGE • LASCO-C2 • LASCO-C3 • STEREO-KCOR Frankfurt - 09 December 2004
LASCO C2 Field of View: 1.5-6.0 R Sensitivity: 2·1072·1010B
LASCO C3 Field of view: 3.7-30 R Sensitivity: 3·1091011B Frankfurt - 09 December 2004
COR2 optical layout Frankfurt - 09 December 2004
Optical parameters of Q-COR Frankfurt - 09 December 2004
SPARE PARTS AVAILABLE FROM LASCO-C2 • Optical components mounted in their barrels - lenses - filters + color correctors - polarizers - HRM (heat rejection mirror) • External occulter + AO • Pointing error system PES • Internal occulter centering system IOCS* • Focusing mecanisms* • Internal calibration system (tungsten lamps) • Shutter* • Filter and polarizer wheels* CAVEATS • No motors(*) • No rad-hard optical components • No structure • Single set Frankfurt - 09 December 2004
SOME OUTSTANDING ISSUES • S/C mounting • Pointing Strategy • FOV Clearance • Radiation damage • Internal calibration • Focusing mechanism (air/vacuum) • Focusing on OE Frankfurt - 09 December 2004
Q-COR work packages Frankfurt - 09 December 2004