Swiss contributions to ILWS 13. 6 Swiss contributions to ILWS 13.6.07 Werner Schmutz (PMOD/WRC) respresenting Swiss Space Office solar irradiance monitoring PMOD/WRC is building hardware today TSI & optical TSI & optical UV & FUV TSI & UV & optical
SOLAR on COLUMBUS on ISS SOVIM/ISS = VIRGO/SoHO: Total Solar Irradiance + optical filter radiometers SOLAR on COLUMBUS on ISS
PROBA2: Two solar instruments LYRA UV radiometer PI: JF Hochedez LYRA.oma.be SWAP EUV imager at 17.5 nm PIs: D Berghmans & JM Defise SWAP.oma.be Sun
Filter Radiometers with 50 Hz observing cadence reconstruction of the solar UV spectrum LYRA/PROBA2 (launch December 2008) PREMOS-PFR/PICARD (launch 2009) LYRA: 10 (Zr), 30 (Al), 125, 215 nm PREMOS: 215, 268, 535, 607, 782 nm
LYRA/PROBA2 – 4 channel solar irradiance: 2 FUV, 2 UV wavelengths – Integration of LYRA on PROBA2 5.3.2007
Total Solar Irradiance observations between 2006 and 2012 ACRIM III 2000 - ? VIRGO/SOHO 1996 - 2007 - 2009 – bonus … TIM/SORCE 2003 – 2008 - (GLORY?) SOVIM/ISS 2008 - 2009 ? PREMOS-TSI/PICARD 2009 - 2012 - ? SOVAP-TSI/PICARD (B) TSI/PROBA3 ??? RAD/KuaFu-A (background study) 2012 RAD – a TSI experiment comprising: SIM = Solar Irradiance Monitor (CN) DOR = Davos Observatory Radiometer (CH)
PICARD PREMOS – SOVAP – SODISM Filter Radiometers Total Solar Irradiance
PREMOS/PICARD proto type finished Thank you for your attention!
Difference of between active absolute radiometers 2003 – 2006 <VIRGO-TIM> = 4.54+- 0.03 W/m2 corresponds to +- 30 ppm trend 20 ppm in 4 years < 5 ppm/year