Conveners
AIP: Solar Terrestrial and Space Physics: STSP
- Trevor Harris (University of Adelaide)
The University of Adelaide's Buckland Park VHF radar site has observed unexpected perturbations in measurements of a satellite's radial velocity (Doppler). Fourier analysis and an algorithm have been applied to the data to link the perturbations to recorded ionospheric disturbances.
We demonstrate the absolute frequency calibration of a laser using a free spectral range cavity readout designed for next generation geodesy missions.
Ionospheric corrections are applied to satellite observations made using a high frequency line of sight radar during solar minimum using numerical ray-tracing. Results showed mean error in satellite position compared to two-line-element propagation decreased to within 1 km.
We study the stability of laser driven light sails during acceleration by adapting the Poynting-Robertson Effect equations to generalised sail geometries, finding the existence of a passive damping force.
Tree ring radiocarbon reveals 'Miyake events': rare bursts of cosmic radiation, larger than the greatest solar flares. Using our new open source Bayesian carbon cycle code, we reanalyse all published data, rejecting false positive events and challenging previous models.
