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Mission Planning and Operational Constraints and Their Resolution for EO Missions Like EnMAP

Axmann, Robert and Eberle, Sabrina (2010) Mission Planning and Operational Constraints and Their Resolution for EO Missions Like EnMAP. In: American Institute of Aeronautics and Astronautics, Inc.. SpacOps 2010, 25.-30. April 2010, Huntsville, Alabama, USA.

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Official URL: http://www.aiaa.org

Abstract

Earth observation missions are generally operated by execution of predefined time-tagged commands. However, depending on the type of mission, issues relevant to different types of mission may occur. These issues are drivers for the design of the operations system of EnMAP (Environmental Mapping and Analysis Program). The main challenges are limited transfer of telecommands and limited downlink capabilities; also the cloud coverage in the target area - for optical sensors - plays a huge role. There are certain constraints, concerning this satellite bus in particular. For example a limited time tagged list which allows no more than 120 time tagged commands on board. Further the fact that every dumped house keeping packet has to be requested from the space craft which leads to a delay in the reception of telemetry can be a bottle neck. In addition to these S-band related issues it is a real challenge to coordinate the amount of payload data which will be down-linked via X-band. In this paper the strategy of managing all these difficulties and optimally operating the satellite under these conditions, will be described. For handling of cloud coverage a database with weather statistics will be implemented. These statistics are compared with global forecast models as provided by e.g. the German weather service (DWD). With the calculated forecast values, planning priority of datatakes is increased or decreased.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Mission Planning and Operational Constraints and Their Resolution for EO Missions Like EnMAP
Authors:
AuthorsInstitution or Email of Authors
Axmann, RobertRobert.Axmann@dlr.de
Eberle, SabrinaSabrina.Eberle@dlr.de
Date:April 2010
Journal or Publication Title:American Institute of Aeronautics and Astronautics, Inc.
Status:Published
Keywords:Mission Planning EnMAP Earth Observation
Event Title:SpacOps 2010
Event Location:Huntsville, Alabama, USA
Event Type:international Conference
Event Dates:25.-30. April 2010
Organizer:SpaceOps
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt EnMap / Bodensegment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > GSOC-German Space Operations Center
Space Operations and Astronaut Training
Deposited By: Juliane Geisau
Deposited On:11 Jan 2011 11:33
Last Modified:12 Dec 2013 21:11

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