Column definitions: year day-of-year utseconds (universal time in seconds) X-rayFlux(0.5-4.0A) (GOES xray flux in Watts/cm2) X-rayFlux(1-8A) (GOES xray flux in Watts/cm2) F10.7 (10.7 cm solar radio flux) Ap (3-hourly Ap value) Kp (3-hourly Kp value)