page_title: Priroda
section_title: Description
hierarchical_section_title: Priroda / Description
caption_attribution_description: English: A view of the Travers RADAR antenna on the Priroda module of the Russian space station Mir
context_page_description: The Priroda module was the seventh and final module of the Mir Space Station. Its primary purpose was to conduct Earth resource experiments through remote sensing and to develop and verify remote sensing methods. The control system of Priroda was developed by the Khartron.
context_section_description: Priroda was originally designed to carry a deployable solar array. However, due to delays, and the fact that solar arrays were planned for other parts of Mir, a solar array was not included in the launch configuration. Instead, during free flight, Priroda was powered by two redundant sets of batteries totaling 168. Priroda had an unpressurized instrument compartment and a habitable instrument/payload compartment. The unpressurized compartment contained propulsion system components, EVA handrails, and scientific equipment. The instrument/payload compartment was divided into two sections: an outer instrument section and an inner habitation and work compartment. Experiments on Priroda were provided by twelve different nations. These experiments covered microwave, visible, near infrared, and infrared spectral regions using both passive and active sounding methods.
  Remote sensing instruments:
  Alissa lidar - measured cloud height, structure, optical properties. 150 m vertical resolution, 1 km horizontal resolution
  Centaur 400 MHz receiver - used to gather ocean buoy data
  DOPI interferometer - studies gases and aerosols. 2.4-20 micrometer
  Greben ocean altimeter - 10 cm resolution, 13.76 GHz, 2.5 km swath, nadir viewing
  Ikar N nadir microwave radiometers - 0.3, 0.8, 1.35, 2.25, 6.0 cm wavelengths, 60 km swath, resolution 60 km and 0.15 K
  Ikar Delta scanning microwave radiometer system - scanned 40° off track with a 400 km swath. 4.0, 0.3, 0.8, 1.35 cm wavelengths, resolution 8 – 50 km and 0.15 - 0.5 K
  Ikar P panoramic microwave radiometers - 2.25, 6.0 cm wavelengths, 750 km swath, resolution 75 km and 0.15 K
  Istok 1 IR spectroradiometer - wavelengths between 4.0-16.0 micrometer, 7 km swath, 0.7 x 2.8 km resolution
  MOS-Obzor spectrometer - measured aerosol profile and ocean reflectance. 17 channels between 0.750-1.01 micrometer, 80 km swath, 700 m resolution
  MOMS 02P Earth imager - 4 channels between 0.440-0.810 micrometer. Multi spectral, stereo or high resolution data, 6 km resolution. German instrument, initially flown aboard Spacelab D2 on Shuttle.
  MSU-E2 high resolution optical scanner - 10 m resolution, 3 channels between 0.5 and 0.9 micrometer, nadir viewing, 2 x 24.5 km swaths
  Ozon M spectrometer - used for ozone/aerosol profiles. 160 channels between 0.257-1.155 micrometer, 1 km altitude resolution
  Travers Synthetic Aperture Radar - 1.28/3.28 GHz, 50 km swath, 38° look angle, 50 m resolution.
caption: Closeup of the Travers antenna taken by the crew of STS-79
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