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Keywords_110
Solving of the ACH Problem in the Project "Interplanetary Solar Stereoscopic Observatory"
M. S. Chubey1, L. I. Yagudin1, V. N. L'vov1, S. D. Tsekmejster1, V. V. Kouprianov1, G. I. Eroshkin1, п•. пђ. Smirnov2, A. V. Petrov2
1Central (Pulkovo) Astronomical Observatory of RAS, St. Petersburg, Russia    22St. Petersburg State University, St. Petersburg, Russia
Abstract:
The extended modeling of the on-board observational process within the Interplanetary Stereoscopic Observatory concept [3] during a 6 year mission and the expected single NEO-observation errors are presented. It is shown that the accuracy of the distance to an asteroid can be achieved in the interval from 2.5 km to 15.0 km depending on the revolution period and maximal distance of the NEO. Every synchronous on-board long-focus astrograph observation gives a 3D-vector of the NEO's position with an angular accuracy at a level of ±0.001". The effectiveness of the Observatory in supporting ACH-investigations is evident.

Key words:
Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), Project "Interplanetary Solar Stereoscopic Observatory", ACH Problem, NEO-observation errors, accuracy of the distance to an asteroid, revolution period, maximal distance of the NEO, synchronous on-board long-focus astrograph observation, 3D-vector of the NEO's position.