GEONETCast, a near real-time global environmental information-delivery system by which in situ, airborne, and space-based observations, products, and services are transmitted to users through communication satellites, was accepted as a GEO initiative by the second GEO Plenary. GEONETCast is an interconnected global network of regional dissemination systems that are each focused on a specific ge...

In this paper we present a new method for retrieving tropospheric NO2 Vertical Column Density (VCD) from zenith-sky Differential Optical Absorption Spectroscopy (DOAS) measurements using mobile observations. This method was used during three days in the summer of 2011 in Romania, being to our knowledge the first mobile DOAS measurements peformed in this country. The measurements were carried ou...

The Laser Communications Relay Demonstration (LCRD) project will demonstrate high bandwidth space to ground bi-directional optical communications links between a geosynchronous satellite and two LCRD optical ground stations located in the southwestern United States. The project plans to operate for two years with a possible extension to five. Objectives of the demonstration include the developm...

The HelioClim project aims at producing temporal series of solar radiation maps at ground level over Europe, Africa and Atlantic Ocean from 1985 up to now. Meteosat satellites images in visible channel and in the reduced resolution B2 format are used to produce this climatological database. The Heliosat II method was selected to convert these images into maps of the global irradiation at ground...

Abstract Recent experimental breakthroughs in satellite quantum communications have opened up the possibility of creating a global internet using links. This approach appears to be particularly viable near term, due lower attenuation optical signals from ground, and currently short coherence times memories. The latter prevents ground-based entanglement distribution atmospheric or optical-fiber ...

As part of its research program in spacecraft operations, Stanford University’s Space Systems Development Laboratory (SSDL) is developing a ground station control system to support advanced command and telemetry operations. Known as Mercury, this control system provides direct human console control, remote human tele-operation, and script/program based autonomous control. Each of these modes su...

A 50kg-class micro satellite RISESAT has various missions for space research: a laser communication terminal called VSOTA, a 5m GSD multi-spectral high-resolution telescope called HPT, a corner cube retro reflector, and so on. In this paper, collaborate experiment plan of VSOTA, HPT, CCR and ground SLR stations for satellite attitude determination is introduced. Introduction Small satellites ar...