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The Precise Autonomous Orbit Keeping Experiment on the PRISMA Formation Flying Mission

De Florio, Sergio and D'Amico, Simone and Garcia-Fernandez, Miquel (2008) The Precise Autonomous Orbit Keeping Experiment on the PRISMA Formation Flying Mission. 18th AAS/AIAA Space Flight Mechanics Meeting, 28-31 Jan. 2008, Galveston, Texas.

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Abstract

This paper analyses the problem of the autonomous control of the Longitude of the Ascending Node (LAN) for a satellite in Low Earth Orbit (LEO) by means of along-track and anti-along track velocity increments which adjust the semi-major axis. The problematic concerned with the possibility of generating the reference orbit on-board and with the estimation of the atmospheric drag are considered. The Autonomous Orbit Keeping (AOK) experiment of the PRISMA formation flying mission will be the test platform of the theoretical achievement here exposed. PRISMA comprises a fully maneuverable micro-satellite (MAIN) as well as a smaller sub-satellite (TARGET) which are launched together in a clamped configuration and separated in orbit after completion of all checkout operations. The AOK on-board software shall demonstrate MAIN satellite autonomous orbit control using a guidance law for the orbits LAN and shall implement a deterministic control algorithm using along-track and anti-along-track velocity increments. Using GPS-based absolute navigation data, AOK shall command thruster activations in the orbital frame to autonomously control the orbit within a predefined window. The main requirement of the experiment is to demonstrate an orbit control accuracy of the osculating ascending node of 10 m (1 sigma). The paper shows results from real-world software simulations where the accuracy of the reference orbit is limited and GPS sensors and hydrazine actuators are accurately modeled. The fundamental approach on which the software design, validation and testing is based, is also explained

Item URL in elib:https://elib.dlr.de/74345/
Document Type:Conference or Workshop Item (UNSPECIFIED)
Title:The Precise Autonomous Orbit Keeping Experiment on the PRISMA Formation Flying Mission
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
De Florio, SergioUNSPECIFIEDUNSPECIFIED
D'Amico, SimoneUNSPECIFIEDUNSPECIFIED
Garcia-Fernandez, MiquelUNSPECIFIEDUNSPECIFIED
Date:January 2008
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:PRISMA, orbit keeping, autonomy, precise control, experiment
Event Title:18th AAS/AIAA Space Flight Mechanics Meeting
Event Location:Galveston, Texas
Event Type:international Conference
Event Dates:28-31 Jan. 2008
Organizer:AAS/AIAA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > GSOC-German Space Operations Center
Deposited By: D'Amico, Simone
Deposited On:23 Jan 2012 17:44
Last Modified:07 Mar 2013 10:50

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