Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.3216s&link_type=abstract
American Astronomical Society, DPS meeting #40, #32.16; Bulletin of the American Astronomical Society, Vol. 40, p.454
Astronomy and Astrophysics
Astronomy
Scientific paper
NASA and ESA are currently conducting studies of a potential collaborative flagship mission Titan, Enceladus, and the Saturn system. The Saturn mission study, named the "Titan Saturn System Mission" (TSSM) study until an official name is adopted, is a combination of the "Titan and Enceladus Mission" (TandEM) proposed to and accepted for study by ESA's Cosmic Vision 2015-25 Program, and restructurings of two NASA flagship mission concept studies performed in 2007, "Titan Explorer" and "Enceladus Explorer". The combined mission is reminiscent of the Cassini/Huygens (CH) collaboration. It would have a NASA Titan-orbiting element and one or more ESA in situ elements that could be carried to Titan by the NASA element. There are multiple architecture options for implementing such a mission, and those architectures influence the options for delivering and supporting the ESA in situ elements. For instance, the decision to launch all elements on one launch vehicle, or to launch the NASA and ESA elements separately, greatly influences the options for delivery timing. In turn, the suite of options for delivery and support (which go beyond timing), especially constraints on timing that arise from them, influence the science return expected from the in situ elements. If the common launch architecture is chosen there are five primary options for effecting delivery of the in situ elements, mostly tied to timing of the delivery: upon Saturn approach, just after Saturn orbit insertion (SOI), during pumpdown, just before Titan orbit insertion (TOI), and after TOI. Each carries implications for how much mass can be delivered, what locations on Titan can be targeted, and how much science data might be returned to Earth. For all the primary architectural options, the presentation will discuss the ramifications of these differences on the science to be achieved. This work is funded by NASA.
Spilker Thomas Richard
Strange Nathan J.
TSSM Study Team
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