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UHF communications with CubeL: the path to nominal operations

Lagadrilliere, Pierre-Alexis and Balan, Arvind Kumar and Müller, Kay and Huber, Felix (2023) UHF communications with CubeL: the path to nominal operations. 17th International Conference on Space Operations (SpaceOps 2023), 2023-03-06 - 2023-03-10, Dubai, Vereinigte Arabische Emirate.

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CubeL (aka PIXL 1) is a 3U cubesat serving in-orbit-demonstration purposes. Its main payload is OSIRIS, a miniaturized optical terminal designed by DLR and Tesat-Spacecom which is capable of transmitting up to 100Mbps. CubeL is also the first COTS cubesat operated by the German Space Operations Center (GSOC). For this, a standard UHF transceiver using CSP, the Cubesat Space Protocol, has been installed on the spacecraft. And a brand new UHF ground station was installed on GSOC’s roof in Oberpfaffenhofen, Germany. The UHF station consists of a steerable double cross Yagi antenna linked to a transceiver of the same design as the one on board the spacecraft. This transceiver also relies on CSP and secures the compatibility between spacecraft and ground station. After introducing the CubeL spacecraft, its on-board UHF communication systems, and the new UHF ground station, we will present the challenges encountered by GSOC to operate CubeL with the UHF link. Among others, we will detail how the geometry of the ground antenna and various misalignments affect the link quality and what this means for daily operations. Effects of phase misalignment on the antenna and their impact will be detailed too. And the consequences of the World Radiocommunication Conference 2019 (WRC-2019), more specifically the addition of the article 5.264A, on operations with the UHF communication link will be analysed in detail. GSOC’s strategy to tackle those obstacles and restore nominal operations with CubeL will be described. To conclude, we will discuss if this UHF link is viable in today’s conditions.

Item URL in elib:https://elib.dlr.de/199445/
Document Type:Conference or Workshop Item (Speech)
Title:UHF communications with CubeL: the path to nominal operations
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:March 2023
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:DLR, GSOC, CubeL, UHF, CSP , WRC-2019
Event Title:17th International Conference on Space Operations (SpaceOps 2023)
Event Location:Dubai, Vereinigte Arabische Emirate
Event Type:international Conference
Event Start Date:6 March 2023
Event End Date:10 March 2023
Organizer:Mohammed Bin Rashid Space Centre (MBRSC)
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 - Compact Satellite, R - Payload ground segment
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Communication and Ground Stations
Space Operations and Astronaut Training > Leitungsbereich RB
Space Operations and Astronaut Training > Mission Operations
Deposited By: Lagadrilliere, Pierre-Alexis
Deposited On:21 Nov 2023 09:26
Last Modified:24 Apr 2024 21:00

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