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Replacing the TDP-1 Mission Planning System – more than just another Technical Demonstration Project

Wörle, Maria Theresia and Lenzen, Christoph and Wiesner, Sebastian and Prüfer, Sven and Petrak, Andreas and Müller, Kay (2021) Replacing the TDP-1 Mission Planning System – more than just another Technical Demonstration Project. 72nd International Astronautical Congress (IAC 2021), 2021-10-25 - 2021-10-29, Dubai, Vereinigte Arabische Emirate.

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Official URL: https://iafastro.directory/iac/paper/id/63796/abstract-pdf/IAC-21,B6,2,7,x63796.brief.pdf


After over seven years of successful operations, end of last year it was decided to replace the existing TDP-1Mission Planning System (MPS) at the German Space Operations Center (GSOC) by a completely new MPS implementation based on the novel generic Reactive Planning framework. With the MPS being the core component within a well-proven ground segment this meant a huge step including not-neglectable risks with respect to the effort to guarantee continuous reliability. The paper at hand describes why we still performed this migration as such a decision of course requires more good reasons than a list of change requests by the customer. It introduces both the old and the new system, including their setup and design approaches. It critically discusses design and implementation of the previous, Plato-based system before giving an overview and some details of the solutions included in the new software. This has been implemented based on the Reactive Planning framework which we developed at GSOC in the last years and which shall serve as the basis for all our future Mission Planning Systems. After the almost finalized preparation of the MPS for an upcoming complex Earth-observation mission, EnMAP, the TDP-1 laser communication coordinating MPS became the second implementation based on the framework and now is the first one operational since some weeks. The migration provided numerous benefits for the future TDP-1 maintenance and was a very valuable experience to make the Reactive Planning framework even more robust and generic as it led to a number of improvements that will be inherited by the other and all future systems based on it. The lessons learnt comprise for instance how an iterative DevOps approach with a close cooperation with the other subsystems and the customer as well as a thorough multi-level testing approach enabled the successful replacement of the MPS in the last months, and furthermore, after the thorough discussion of the previous approach, remind to be always open-minded to and prepared for software development technology evolutions.

Item URL in elib:https://elib.dlr.de/145871/
Document Type:Conference or Workshop Item (Speech)
Title:Replacing the TDP-1 Mission Planning System – more than just another Technical Demonstration Project
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Lenzen, ChristophUNSPECIFIEDhttps://orcid.org/0000-0003-3542-6303UNSPECIFIED
Wiesner, SebastianUNSPECIFIEDhttps://orcid.org/0000-0001-5918-3786141764927
Date:28 October 2021
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Mission Planning, Optical Intersatellite Communication, Link Management, Planning and Scheduling, Reactive Planning
Event Title:72nd International Astronautical Congress (IAC 2021)
Event Location:Dubai, Vereinigte Arabische Emirate
Event Type:international Conference
Event Start Date:25 October 2021
Event End Date:29 October 2021
Organizer:International Astronautical Federation (IAF)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Control Centre Technology
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Mission Technology
Deposited By: Wörle, Maria Theresia
Deposited On:22 Nov 2021 11:38
Last Modified:24 Apr 2024 20:44

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