Ionospheric Perturbation Associated with the "Plasma-Progress" Experiment at Irkutsk
Shpynev VG, et al. (2008). "Ionospheric Perturbation Associated with the "Plasma-Progress" Experiment at Irkutsk." XXIXth URSI General Assembly
A sequence of planned experiments "Plasma-Progress" during September 19-24, 2007 were performed to obtain data on the ionospheric effects of the exhaust products. Engines of Progress spacecraft were running in different directions relatively to Irkutsk Incoherent Scatter Radar (ISR), and only a few kilograms of fuel were used in each day of experiment. These experiments produced a local ionization depletion area in the vicinity of Irkutsk ISR. As a result, the estimations of absolute plasma density depletions of 12% to 40% were defined for different spacecraft flights and also 10-20 minutes ionosphere relaxation time was found.