The TerraSAR-X/TanDEM-X Mission Planning System: Realizing new customer visions by applying new upgrade strategies

Mrowka, Falk; Göttfert, T.; Wörle, Maria Theresia; Schättler, Birgit; Stathopoulos, Fotios

doi:10.2514/6.2016-2597

Cited by 5 publications

(7 citation statements)

References 10 publications

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“…As outlined in part b) of Figure 3 elements of the redundant SAR instrument chain were operated in parallel to the nominal ones starting from November 2014. This influenced significantly the mission planning process and is subject to different SpaceOps conference contributions 10,11 . The operations of the redundant instrument chain enabled the so-called Dual Receive Antenna (DRA) mode.…”

Section: The Tandem-x Science Phasementioning

confidence: 99%

Operational aspects of the TanDEM-X Science Phase

Maurer

Kahle

Mrowka

et al. 2016

SpaceOps 2016 Conference

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In the years 2010-2014 the satellites TSX and TDX collected all the Synthetic Aperture Radar (SAR) data necessary to fulfill the primary TanDEM-X mission objective: the generation of a global digital elevation model with unprecedented accuracy. In September 2014, when the necessary data set was almost complete, a transition to the so-called science phase took place. Its focus was the implementation of the TanDEM-X secondary mission objectives. TSX and TDX fly in close formation in low Earth orbit in order to form a SAR interferometer in space with adjustable interferometric baselines. Due to the diversity of scientific applications, the science phase was marked by several baseline and hence formation changes and, in addition, by unusual formation geometries. Modifications to the proven operational handling of SAR payloads and the data downlink became necessary as well as the adaptation of existing safety concepts. Furthermore, the transition from one baseline setting to the other had to be managed operationally safe and in such a way that downtimes were minimal. Nomenclature SAR= Synthetic Aperture Radar TanDEM-X Mission =

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Section: The Tandem-x Science Phasementioning

confidence: 99%

Operational aspects of the TanDEM-X Science Phase

Maurer

Kahle

Mrowka

et al. 2016

SpaceOps 2016 Conference

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“…The central planning of the EnMAP planning system is based upon GSOC's new Reactive Planning framework (formerly called Incremental Planning System, see [19]), which has been designed to meet the customers' desires according to the experiences gathered in previous missions, especially the TerraSAR-X/TanDEM-X mission ( [20], [21]). …”

Section: A Reactive Planningmentioning

confidence: 99%

The EnMAP Mission Planning System

Fruth

Lenzen

Gross

et al. 2018

2018 SpaceOps Conference

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The Environmental Monitoring and Analysis Program mission (EnMAP) is a German hyperspectral Earth observation mission, currently scheduled for launch in 2020. The EnMAP Mission Planning System (MPS), developed and operated by the German Space Operations Center (GSOC), is one of 15 subsystems constituting the EnMAP Ground Segment. Its main task is to compile and maintain a conflict-free timeline for routine operations that does not violate any constraints of the spacecraft (e. g. regarding power or onboard memory); this timeline will regularly be commanded to the spacecraft. This paper gives an overview of the current EnMAP MPS design, including the special requirements of the EnMAP mission, the components of the MPS and its most important external interfaces. The design of the EnMAP MPS largely builds on our experience gathered during the TerraSAR-X/TanDEM-X mission and has been developed further. Novel technologies include the Reactive Planning framework, which particularly stands out due to its high responsiveness to user input. Particular attention is furthermore paid to the inclusion of cloud coverage and sunglint information into the planning process-two challenges which are specific to EnMAP observing in the optical and near infrared part of the spectrum.

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“…This concept was extended by creating various pools, containing different combinations of ground stations. The most significant pool is the Near Real Time pool, a concept restricted only on TerraSAR-X commercial orders that are flagged with a higher downlink priority 6 .…”

Section: Terrasar-x Ground Station Pool Conceptmentioning

confidence: 99%

“…Individual tests prior to the initiation of each formation geometry phase were performed 6 . Through those tests, we proved the smooth processing of the DRA-acquisition requests inside the Mission Planning System, in parallel with all the internal and external changes by the new formation geometries.…”

Section: A Single Receive Antenna Configuration Vs Dual Receive Antmentioning

confidence: 99%

“…The next seventeen months were dedicated to the secondary objective of the TanDEM-X mission: the demonstration of innovative techniques and experiments, defined as the TanDEM-X Science phase. For the first time since the launch of the TDX satellite, the Mission Planning System needed to evolve extensively 6 in order to support a twofold target: a) support the new TanDEM-X mission's requirements, while b) seamlessly proceed with the TerraSAR-X mission fulfilling both its scientific and commercial demands.…”

Section: Introductionmentioning

confidence: 99%

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Evolving the Operations of the TerraSAR-X / TanDEM-X Mission Planning System during the TanDEM-X Science Phase

Stathopoulos¹,

Guillermin²,

Acero³

et al. 2016

SpaceOps 2016 Conference

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After the successful Global Coverage of the Digital Elevation Model, the TanDEM-X Science phase was initiated in September of 2014, dedicated to the demonstration of innovative techniques and experiments. The TanDEM-X Science phase had a large impact on the TerraSAR-X/TanDEM-X Mission Planning System. The two main challenges were the formation flying changes and the activation of a new acquisition mode, the so called Dual Receive Antenna (DRA) acquisition mode. This paper describes all actions and quantitative analyses performed in order to achieve the twofold target of the Mission Planning System: a) support the new TanDEM-X mission's requirements, while b) proceed seamlessly with the TerraSAR-X mission fulfilling both its scientific and commercial demands. Regarding the first objective, several system reconfigurations are presented which were executed either due to the new flying formations or due to enabling the new DRA acquisition mode. In parallel, various analyses are included for the ground station visibilities of each formation and the distribution of the Sand X-Band contacts. For the second objective, it is presented how, via new concepts and mechanisms, it was possible to continue the TerraSAR-X mission undisturbed. Statistical analyses depict their successful integration and performance in the operational system. As a heritage of the TanDEM-X Science phase, the statistical analyses have become a very useful tool for the daily operations of both satellites and missions.

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The TerraSAR-X/TanDEM-X Mission Planning System: Realizing new customer visions by applying new upgrade strategies

Cited by 5 publications

References 10 publications

Operational aspects of the TanDEM-X Science Phase

Operational aspects of the TanDEM-X Science Phase

The EnMAP Mission Planning System

Evolving the Operations of the TerraSAR-X / TanDEM-X Mission Planning System during the TanDEM-X Science Phase

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