A theoretical lunar ionosphere

Variations in the sky brightness during a lunar eclipse

A total lunar eclipse is conjectured to have influence on the physical conditions of an environmental area, particularly on the brightness of the sky. The phenomenon might also be relevant on weather parameters change on Earth, such as temperature, humidity and pressure, though a straightforward correlation is not easy to establish. This work mainly aims at measuring the brightness of the sky a...

The Lunar Surface Gravimeter as a Lunar Seismograph

Attenuation of radio signals by the ionosphere of Mars: Theoretical development and application to MARSIS observations

[1] We investigate the ionospheric conditions required to explain Mars Express Mars Advanced Radar for Subsurface and Ionosphere Sounding topside radar sounder observations of ionospheric attenuation in excess of 13 dB at 5 MHz during solar energetic particle events. We develop theoretical expressions for the attenuation caused by a layer of ionospheric plasma in cases of high, intermediate, an...

The International Reference Ionosphere – Climatological Standard for the Ionosphere

The International Reference Ionosphere (IRI) a joint project of URSI and COSPAR is the defacto standard for a climatological specification of ionospheric parameters. IRI is based on a wide range of ground and space data and has been steadily improved since its inception in 1969 with the ever-increasing volume of ionospheric data and with better mathematical descriptions of the observed global a...

Constellation Architecture Team-Lunar Lunar Habitat Concepts

draft 1/17/07 1 Abstract for the AIAA Space 2008 Conference, Sept 9-11, 2008, San Diego, Cal. Constellation Architecture Team-Lunar Lunar Habitat Concepts Larry Toups, NASA/JSC; Kriss J. Kennedy, NASA/JSC This paper will describe lunar habitat concepts that were defined as part of the Constellation Architecture Team-Lunar (CxAT-Lunar) in support of the Vision for Space Exploration. There are ma...