Multispectral Medium Resolution Scanner (MMRS), a five band spectral scanner (three bands in the visible, one in the near infrared spectrum, and one Short Wave Infrared band). These bands were selected for the study of both terrestrial and coastal marine ecosystems, agricultural and forestry management, desertification, pollution, coastal zone management and fisheries. Real time and stored images are available at resolutions of 350 and 175 meters. The Scanner has its own receiver and transmitter, and features a store-and-forward capability to relay data from remote data sensors to provide for in situ data monitoring. MMRS is fully operational since December 2000 providing daily coverage of Argentina on real time mode, and any region of the rest of the world in store-and-forward mode, under user request. Imaginery is distributed by CONAE and can be seen in the mission catalog at www.conae.gov.ar

Magnetic Mapper Probe and a Scalar Helium Magnetometer (MMP/SHM) to provide a set of space observatory quality geomagnetic field data, which, in combination with that of the Ørsted (to be launched on August 14, 1997) and other Geomagnetic or Gravity future NASA Missions to Planet Earth, will span a decade of data. This contribution will have an impact on a number of areas, including decade variations in angular momentum, the nature of earth's mantle and long- term magnetic field modelling. CRI from Denmark and JPL from USA are to build the MMP and the SHM. 

TurboRogue GPS receiver payload, to be supplied by JPL/NASA. Its measurements will help determine the ionosphere structure, valuable to a number of studies including that of the nature of electrical currents in the ionosphere and magnetosphere which constitute a significant component of error in geomagnetic field measurements. It will also help to improve the estimates of ionosphere delay which degrade altimeter radar such as ERS-1, ERS-2, and Geosat-B. SAC-C will carry an array of GPS antennae to perform atmospheric profiling as an extension of the NSF and NASA GPS/MET experiment. Finally, a high sensitivity nadir GPS antenna will test the concept of the use of GPS signals reflecting off the ocean surface to provide high resolution altimeter.

High Resolution Technology Demonstration Camera (HRTC) is based on a 200mm refractive optics and a similar electronics to a single MMRS channel, covering from 450 to 750nm, with a ground resolution of 30m. Resampling studies are possible with this camera in connection with the MMRS images.

Component and Radiation (COMRAD/ICARE) French payload that will update low orbit space radiation environment models, monitoring three energy bands, namely, electrons spectrum (50KeV - 5MeV), protons spectrum (8MeV - 500MeV), and heavy ions integral spectrum (1MeV - 100MeV). It will also conduct on board tests of a selection of electronic components in the demanding environment of the so-called South Atlantic Anomaly Area.

Receiver and data handling electronics for tracking the migration of whales about the South Atlantic Ocean.

LAGRANGE Navigation System, from LABEN - Italy. An instrument for attitude and position determination using the combined information from both the GPS and the GLONASS Navigation Systems. It features a 60m position accuracy, and 1 m/sec velocity error. With the addition of a Kalman filter, the position accuracy is improved to 20m, and the velocity error to 0.05 m/sec.

Autonomous Attitude Determination From Stars (AADS) from Alenia - Italy. A system able to perform in a very fast and fully autonomous way a complete on-
board determination of the attitude vector and its derivative from the information provided by one CCD camera. The system is able to autonomously manage all operational modes and transitions. For earth pointing modes the CCD camera information is complemented by orbital position information.