Now showing items 1-10 of 34
ASTR 210 Natural Sky Draft Cover
Night sky at Athabasca with Athabasca University Robotic Telescope in foreground.
Onsets and Flapping Studied Using a Dynamic Harris Sheet Model
We have developed a nonlinear fitting routine for the Harris current sheet based on magnetic data, and applied it to 71 plasma sheet crossings by Cluster. In most cases this simple fit appeared to represent the magnetic ...
Progress on Low-Cost Pulse-Counting Magnetometers for Geomagnetic Studies
"what the world needs now is a good $500 magnetometer"
Workshop material about THEMIS
Space Physics: Aurora Borealis
Cluster data was used to examine the magnetospheric boundary and more particularly the tail. Harris sheet fits were done in a dynamic fashion that allows flapping to be quantified.
Interpretation of Automated Forward Modeling Parameters for Sawtooth Events and Substorms
(International Conference on Substorms 8, 2006)
Automated Forward Modeling (AFM) is an inversion technique based on magnetic data alone, which can indicate physical parameters associated with electrojets. From perturbations along a meridian, the total electric current ...
Linear fit to an arbitrarily long 2-column dataset.
Noctilucent Cloud Videos, Jun 23 2006
Videos of noctilucent clouds (NLC) seen from Athabasca University Geophysical Observatory on June 23 2006. NLC are mesospheric clouds which are very high and lit up by the sun despite it being well below the horizon at the ...
Physical Parameters of Substorms from Automated Forward Modeling
AFM technique applied to give average parameters of substorms and relation to AL index, Weimer parametrization, optical data
A Survey of Orbits of Co-orbitals of Jupiter
Jupiter’s Trojan asteroids fulfill the prediction of Lagrange that orbits can be stable when a small body orbits in specific locations relative to its ‘parent’ planet and the Sun. The first such Trojan asteroid was discovered ...