Cost-Benefit Analysis of Global Disaster Monitoring Architectures with an On-Orbit Servicing Depot

Hong, Seungbum; Na, Hyungho; Ahn, Ji-Whan

doi:10.2514/6.2012-5266

Cited by 1 publication

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“…It is also important to investigate whether the proposed system is more attractive than other alternative architectures in terms of cost/benefit aspects. According to Hong et al's 49 study, the proposed concept may be more beneficial than other alternative architectures in terms of system cost, depending on mission requirements. In general, it is shown that the disaster monitoring constellation supported by on-orbit depots can be developed, produced, and launched with less cost than disposable satellite constellations at higher frequency of disasters, defined by mission requirements and covered by these systems.…”

Section: Concept Of Operations: Dual-mode Satellite Constellation Supported By An On-orbit Propellant Depotmentioning

confidence: 99%

Assessment of architectural options for a dual-mode disaster monitoring constellation supported by on-orbit propellant depots

Hong

Ahn

2013

Proceedings of the Institution of Mechanical Engineers, Part G:

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This paper introduces a concept, a baseline design, and a trade study for a new space-based global continuous disaster monitoring system composed of a dual-mode satellite constellation and on-orbit propellant depots. The proposed constellation operates in two different modes: a normal mode and a disaster mode, which are responsible for atmospheric/oceanic imaging and disaster monitoring, respectively. The dual-mode concept enables the system to manage the uncertainties associated with the unknown time and location of a disaster and to enhance its operational efficiency by improving its utilization. The mode-change requires orbit transfers accompanying large amounts of fuel consumption, and this challenge is addressed by an on-orbit refueling system to support the constellation. A reference design for the proposed satellite constellation and the orbiting depot is presented. Orbital parameters and the options for modechange transfers are explored considering the trade-off relationships among the propellant consumption (to minimize), the response time (to minimize), and the access area in normal mode (to maximize). Options for the number of on-orbit propellant depots and the drift rate for the refueling operation are also explored considering the time to complete the preparation and associated probability to get ready for the next disaster outbreak.

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Section: Concept Of Operations: Dual-mode Satellite Constellation Supported By An On-orbit Propellant Depotmentioning

confidence: 99%

Assessment of architectural options for a dual-mode disaster monitoring constellation supported by on-orbit propellant depots

Hong

Ahn

2013

Proceedings of the Institution of Mechanical Engineers, Part G:

Self Cite

View full text Add to dashboard Cite

show abstract

Cost-Benefit Analysis of Global Disaster Monitoring Architectures with an On-Orbit Servicing Depot

Cited by 1 publication

References 1 publication

Assessment of architectural options for a dual-mode disaster monitoring constellation supported by on-orbit propellant depots

Assessment of architectural options for a dual-mode disaster monitoring constellation supported by on-orbit propellant depots

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