Rosetta science operations in support of the Philae mission

Ashman, Mike; Barthélemy, M.; O’Rourke, L.; Almeida, Miguel; Altobelli, Nicolás; Sitjà, Marc Costa; Beteta, Juan Jose Garcia; Geiger, Bernhard; Grieger, B.; Heather, D.; Hoofs, Raymond; Küppers, M.; Martin, Patrick; Moissl, R.; Crego, Claudio Muñoz; Pérez-Ayúcar, Miguel; Suarez, Eduardo Sánchez; Taylor, Matt; Vallat, C.

doi:10.1016/j.actaastro.2016.02.007

Cited by 19 publications

(13 citation statements)

References 4 publications

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“…The RSGS classified three different trajectory versions: first the approximate trajectories created by ROVIZ together with a file known as the TRAjectory request at Long term planning (TRAL), second the Long Term Planning (LTP) cycle trajectories provided by the Flight Dynamics team -both these cases were usually sliced by Medium Term Planning (MTP) cycles in the 3dtool -and third the final Very Short Term Planning (VSTP) cycle trajectories, which also comprise the reconstructed trajectory for the past. 7 For each trajectory, there are several products available: the SPICE kernels which have been used to generate the content, a link to 3D visualizations, a link to 2D plots and raw data files containing the computed (time-resolved) parameters. …”

Section: Visual Front-endmentioning

confidence: 99%

Rosetta 3dtool - a web-based application for science planning

Völk

Schmidt²,

Grieger³

2016

SpaceOps 2016 Conference

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The Rosetta 3dtool was developed in order to provide an overview over the spatial and temporal evolution of Rosetta trajectories. The application supports science planning of the Rosetta mission and shares operational ideas with a broader science community and spacecraft operation engineers. The 3dtool is a web-based application. Therefore, there is a very low threshold for the user to take advantage of it.

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Section: Visual Front-endmentioning

confidence: 99%

Rosetta 3dtool - a web-based application for science planning

Völk

Schmidt²,

Grieger³

2016

SpaceOps 2016 Conference

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“…This was a dynamic process and evolved over time as more knowledge of the Philae status was gained with further contacts, and subsequent on-ground analyses 7 .…”

Section: Evolution Of New Planning Rulesmentioning

confidence: 99%

“…This is done via delivery of the Lander Selected Event File (LSEV) back to the RSGS containing only those lander -orbiter communication windows, lander -orbiter combined observations and CONSERT observations that shall be supported by Philae and by the subsequently delivered (by LCC) final POR format commanding. The CONSERT team are also actively involved at each step of the process, with full visibility of the events being exchanged 7 .…”

Section: The Rsgs-lgs Planning Interactionsmentioning

confidence: 99%

“…For significant violations the "offending" orbiter instrument observation may be swapped with a compatible pointing scheduled at another time, or if this is not possible in the planning time available, either the orbiter observation or the specific lander RF link opportunity may need to be sacrificed. The final agreement in each case, is negotiated by the RSGS with the lander project and the orbiter PI team(s) involved 7 .…”

Section: Observationmentioning

confidence: 99%

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The Evolution of Rosetta-Philae Science Planning Processes Following the Philae Landing

Ashman¹,

Almeida²,

Barthélemy³

et al. 2016

SpaceOps 2016 Conference

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The International Rosetta mission is a European Space Agency (ESA) mission with contributions from its member states and the National Aeronautics and Space Administration (NASA). It is the third and final cornerstone mission (after XMM and Cluster/SOHO) of the ESA Horizon 2000 programme and was launched on 2nd March 2004. The mission, which consists of the Rosetta orbiter and the Philae lander, is the first to rendezvous with, orbit, and deploy a lander onto, a cometary body. These unique activities intend to address the scientific goal of mapping the comet 67-P/Churyumov-Gerasimenko by remote sensing, to examine its environment in-situ and its evolution in the inner solar system. The spacecraft arrived at the comet in summer 2014 and in November 2014, Philae was deployed onto the comet´s surface. In August 2015 comet 67-P reached perihelion and Rosetta will continue to study 67-P before finally landing on its surface in September 2016.The Rosetta science operations are coordinated by the Rosetta Science Ground Segment (RSGS), located at ESA´s European Space Astronomy Centre (ESAC) in Madrid, Spain. The RSGS constructs, in coordination with the Principle Investigator science teams and ESA's Rosetta Mission Operations Centre (RMOC), a plan of scientific observations and provides conflict free operational products for uplink and execution on-board. In parallel, the dedicated Lander Ground Segment (LGS), builds a similar plan and operational products, for Philae platform and scientific experiment activities according to the Philae scientific community´s science objectives. The RSGS must therefore interact closely with the LGS throughout the planning process in order to ensure that all Rosetta and Philae science activities are correctly coordinated and mutually compati ble.The successful but non-nominal Philae landing, combined with the overall evolution of the RSGS' own planning processes in response to the dynamic cometary environment and Rosetta spacecraft constraints, demanded an evolution of these RSGS-LGS interactions that had originally been established prior to the landing event. In this paper, we will detail the major impacting operational issues in this context, and how the RSGS adapted and enhanced the original concept and the internal planning tools & processes in use, in order to maintain the required ability to continually integrate compatible Rosetta and Philae science operations plans throughout the post-landing comet escort phase. We will also detail how this evolution was then put into practise following the June 2015 Philae wake-up, and what further planning challenges this then also presented to the RSGS, and its overall goal of optimizing the mission´s scientific return. Nomenclature

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“…For the pre-landing phase, the SGS ran the process explained above for only those observations defined as Operational [12] whereby they contributed science to support the landing site selection. If a science result was expected to feed into the landing site selection, then steps needed to be taken to see if a replan was at all feasible i.e.…”

Section: Feeding Qlr Back To the Uplink Schedulingmentioning

confidence: 99%

Rosetta Science Ground Segment Observation Quick Look System

O’Rourke¹,

Cuevas-González

Aberasturi

et al. 2018

2018 SpaceOps Conference

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The Rosetta mission is one of the European Space Agency's cornerstone mission with the goal to rendezvous and orbit the comet 67P/Churyumov-Gerasimenko. It arrived in August of 2014 carrying out a highly successful mission with its science results creating a major shift in the knowledge of comets and their formation. This paper describes the work done by the Rosetta Science Ground Segment in the area of downlink operations tracking and monitoring. It describes the Observation Quick Look System and how it is used on a daily basis to track the success/failure of activities performed by the Rosetta instruments. The process is fully described, as is the infrastructure and underlying software used. Other functionality built to support the Rosetta downlink effort is presented. The role the Observation Quick Look System will play in the current ongoing archive enhancement activities is highlighted.

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Rosetta science operations in support of the Philae mission

Cited by 19 publications

References 4 publications

Rosetta 3dtool - a web-based application for science planning

Rosetta 3dtool - a web-based application for science planning

The Evolution of Rosetta-Philae Science Planning Processes Following the Philae Landing

Rosetta Science Ground Segment Observation Quick Look System

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