NSSDCA ID: 1984-125A-02
Mission Name: Vega 1This experiment (TKS) was intended for (1) spectral and polarization studies of the dust, (2) spectral mapping of the coma, and (3) determination of the outflow rates of various gases from Comet Halley and their content. The instrument had a Cassegrain telescope with a focal length of 500 mm and an objective diameter of 140 mm. The light flux passed through three 1-deg slits located in the focal plane to three independent spectroscopic channels in the UV, visible, and infrared. The UV channel covered the range 120 to 350 nm, with spectral resolution of 0.5 nm, spatial resolution of 3 x 6 arc-min, and sensitivity of 3 rayleighs. The visible channel covered 350 to 900 nm, with spectral resolution of 1 nm, spatial resolution of 3 x 6 arc-min, and sensitivity of 10 rayleighs. The infrared channel covered 900 to 2000 nm, with spectral resolution of 10 to 12 nm, spatial resolution of 6 x 60 arc-min, and sensitivity of 3E4 rayleighs. The UV and visible channels used micro-channeltrons for detectors, while the infrared channel used a germanium photodiode.
Mass: 14 kg
Power (avg): 30 W
Bit rate (avg): 12.288 kbps
Questions and comments about this experiment can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Vladimir A. Krasnopolsky | Principal Investigator | Institut Kosmicheskich Issledovaniya (IKI) | vkrasn@altavista.com |
Dr. Guy Moreels | Principal Investigator | Centre National d'Etudes Spatiales | moreels@obs-besancon.fr |
Dr. Mitko Marinov Gogoshev | Principal Investigator | Central Laboratory for Space Research, Astronomical Observatory |