TerraSAR-X Mission Planning System: Automated Command Generation for Spacecraft Operations

Maurer, Edith; Mrowka, Falk; Braun, Armin; Geyer, Michael; Lenzen, Christoph; Wasser, Yi; Wickler, M.

doi:10.1109/tgrs.2009.2033469

Cited by 29 publications

(20 citation statements)

References 4 publications

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“…The design of the EnMAP MPS largely builds on our experience gathered during the TerraSAR-X/TanDEM-X mission [16] and has been developed further. Parts of a preliminary EnMAP MPS design have already been described by [17]; however, it has also evolved significantly since then -most importantly through incorporating the most recent Mission Planning technologies in the context of an intermediate critical design review (so-called ∆CDR) of the EnMAP ground segment in 2016.…”

Section: Mps Designmentioning

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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Section: Mps Designmentioning

confidence: 99%

The EnMAP Mission Planning System

Fruth

Lenzen

Gross

et al. 2018

2018 SpaceOps Conference

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“…Although e.g. the complex, fully automated TerraSAR-X/TanDEM-X Mission Planning System 1,2,3,4,5 is running smoothly and further projects can be served well using GSOC's existing planning tools, we identified several restrictions we intend to overcome, in addition to the fundamental goal of software engineering to identify generic functionalities and to factor them out from project-specific implementations in order to increase stability and reduce costs of future mission planning systems.…”

Section: A Disadvantages Of Customary Mission Planning Systemsmentioning

confidence: 99%

The Incremental Planning System GSOC's Next Generation Mission Planning Framework

Wörle

Lenzen

Göttfert

et al. 2014

SpaceOps 2014 Conference

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The paper at hand presents the new generic framework for automated planning and scheduling in future mission planning systems developed at GSOC (German Space Operations Center). It evolved from the experiences made in past and current projects and the evaluation of internal and external requirements for upcoming projects. In customary systems such as the one used within GSOC's TerraSAR-X/TanDEM-X mission, succeeding planning runs to combine all collected input to a consistent, conflict-free command timeline take place at fix, dedicated points in time, e.g. twice a day. In contrast and as a main difference, with the new system each new input is processed immediately and so a consistent up-to-date timeline is maintained at all times. We show that this approach provides a set of important advantages and new possibilities for spacecraft commanding and user satisfaction. For example, uplink schedules can be flexibly modified due to short-term notifications, or up-to-date, extensive information about the planning state is always available, which means that conflicts can be seen before finally submitting a new request and, if applicable, can be resolved by selecting a suggested solution scenario. The presented system constitutes a generic tool suite which is scalable in performance critical areas, which is configurable to various mission scenarios and which defines a dedicated set of interfaces, specifying the functionality that remains to be implemented by each individual project. The declared goal is that all upcoming GSOC missions will benefit from using the Incremental Planning framework in terms of cost reduction, implementation duration and system robustness.

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“…furthermore, they must be reliable, sufficiently flexible to adapt to many mission-dependent changes, and cost effective for mission schedulers [3,4]. In addition, the process of generating commands should effectively reduce the load on ground operators, which is directly related to the automation of highly complex satellite ground systems [5][6][7], a major interest to associated communities worldwide.…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement of a Satellite's Onboard Antenna Tracking Profile using the Ground Station Searching Method

Song¹,

Lee²,

Kang³

et al. 2016

International Journal of Aeronautical and Space Sciences

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In satellite operations, stable maneuvering of a satellite's onboard antenna to prevent undesirable vibrations to the satellite body is required for high-quality high-resolution images. For this reason, the onboard antenna's angular rate is typically minimized while still satisfying the system requirement that limits the speed of the onboard antenna. In this study, a simple yet effective method, called the ground station searching method, is proposed to reduce the angular rate of a satellite's onboard antenna. The performance of the proposed method is tested using real flight data from the KOMPSAT-3 satellite. Approximately 83% of arbitrarily selected real flight scenarios from 66 test cases show reductions in the onboard antenna's azimuth angular rates. Additionally, reliable solutions were consistently obtained within a reasonably acceptable computation time while generating an onboard antenna tracking profile. The obtained results indicate that the proposed method can be used in real satellite operations and can reduce the operational loads on a ground operator. Although the current work only considers the KOMPSAT-3 satellite as a test case, the proposed method can be easily modified and applied to other satellites that have similar operational characteristics.

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TerraSAR-X Mission Planning System: Automated Command Generation for Spacecraft Operations

Cited by 29 publications

References 4 publications

The EnMAP Mission Planning System

The EnMAP Mission Planning System

The Incremental Planning System GSOC's Next Generation Mission Planning Framework

Performance Enhancement of a Satellite's Onboard Antenna Tracking Profile using the Ground Station Searching Method

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