Method of injecting plurality of spacecraft into different...

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Aeronautical vehicle

Reexamination Certificate

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C701S003000, C244S158100, C244S158400, C244S158500, C244S158600

Reexamination Certificate

active

07747361

ABSTRACT:
In a method for injecting a plurality of spacecraft into different circum-earth or interplanetary orbits individually in a single launch, a plurality of spacecraft coupled to an assist module are injected into an interplanetary orbit having a periodicity synchronous with the earth's revolution period. Then, in a maneuver allowing the assist module to re-counter with and pass near to the earth (Earth swing-by), the assist module appropriately performs an orbital change maneuver and a separation maneuver for each of the spacecraft in a sequential order. Through these maneuvers, a closest-approach point to the earth is changed for each of the spacecraft so as to drastically change a subsequent orbital element for each of the spacecraft. The assist module takes a sufficient time to determine a target orbit for each of the spacecraft with a high degree of accuracy until a half month to several days before a closest-approach time in the Earth swing-by. Based on the determined orbit, the assist module makes an orbit correction of about several m/sec in a sequential order, and then separates the spacecraft therefrom in a sequential order. In this process, an inertia navigation is performed based on an accelerometer mounted in the assist module and information about attitude.

REFERENCES:
patent: 4854526 (1989-08-01), Rochefort
patent: 5350137 (1994-09-01), Henley
patent: 5566909 (1996-10-01), Lapins
patent: 5765784 (1998-06-01), Lapins
patent: 6276639 (2001-08-01), Hornung et al.
patent: 6729582 (2004-05-01), Beyer
patent: 7219858 (2007-05-01), Sharer
patent: 7631839 (2009-12-01), Duncan et al.
patent: 07-187091 (1995-07-01), None
A. E. Roy; “On the Use of Interplanetary Probe Orbits of Periods Commensurable with One Year”; Astronaut; Acta; pp. 31-46; vol. IX.
Johan Schoenmaekers, Rainer Bauske; “Re-design of the Rosetta Mission for Launch in 2004”; ESA/ESOC; Robert-Bosch-Str. 5, D-64293 Darmastadt, Germany.
Bremen; “Rockot Multiple Orbit Mission Hits Different Orbits”; http://www.spacedaily.com/reports/Rockot—Multiple—Orbit—Mission—Hits—Different—Orbits.html; Jun. 18, 2003.
Vladimir A. Chobotov; “Orbital Mechanics”; AIAA Education Series; 1996; pp. 278-279, 287-290.
Jhu/Apl; “Mission Design”; http://messenger.jhuapl.edu/the—mission/mission—design.html; 1999-2006.
Kawaguchi, J.: “On the Delta-V Earth Gravity Assist Trajectory (EDVEGA) Scheme with Applications to Solar System Exploration,” IAF-01-A.5.02, 2001.

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