N2 - NASA's MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) mission will further the understanding of the formation of the planets by examining the least studied of the terrestrial planets, Mercury. T1 - The X-ray spectrometer on the MESSENGER spacecraft This paper summarizes XRS's science objectives, technical design, calibration, and mission observation strategy.", XRS will provide elemental composition measurements covering the majority of Mercury's surface, as well as potential high-spatial-resolution measurements of features of interest. The 12° field-of-view of the instrument will allow a spatial resolution that ranges from 42 km at periapsis to 3200 km at apoapsis due to the spacecraft's highly elliptical orbit.
The Kα lines for the elements Mg, Al, Si, S, Ca, Ti, and Fe will be detected. XRS will measure the characteristic X-ray emissions induced on the surface of Mercury by the incident solar flux. During the one-year orbital phase (beginning in 2011) and three earlier flybys (20), the X-Ray Spectrometer (XRS) onboard the MESSENGER spacecraft will measure the surface elemental composition. This paper summarizes XRS's science objectives, technical design, calibration, and mission observation strategy.Ībstract = "NASA's MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) mission will further the understanding of the formation of the planets by examining the least studied of the terrestrial planets, Mercury. Since space is limited, be sure to call to make reservations if you're planning to stay there.NASA's MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) mission will further the understanding of the formation of the planets by examining the least studied of the terrestrial planets, Mercury. We found 8 feet of water all the way (100 yards) to their fuel dock. Take the first left turn into the channel that runs alongside the public docks. The facility is located in the southernmost entrance of the Alexandria Bay peninsula. The city dock charges the same amount with no power or water. They charge $1.50/ft, which includes electricity. But Jim and his crew are so very accommodating that the lack of resort amenities is easily surpassed by their good will. The facility is small, and dock space is limited. However, if I had the time I would definitely have had them do the work. I had some other work that I would have liked them to do-and they said they could do it the next day-but we had to move on to keep a schedule. Jim, the proprietor, had one of his mechanics on the boat within 15 minutes, and the problem was solved less than half an hour later. We had a minor electrical issue with our instruments.
After visiting Boldt Castle, we spent one night at JP Marine.
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