hyperspectral monitoring; collection data about weather and gas composition of the
atmosphere and ionosphere; and collection data concerning impacts of space activities on the
Earth’s atmosphere and ionosphere (interaction of space vehicles with the atmosphere and
ionosphere).
RESULTS
Relaksatsya-Vykhlop
Global areas of interaction between rocket engine exhausts
(installed on Progress and Soyuz-TMA spacecraft) and the
upper rarefied atmosphere of the Earth (H ~ 350 to 400 km)
were disclosed and studied; through analysis of brightness
fields, fundamental constants of hypervelocity oxygen atoms
interaction with components of engine exhausts were
revealed.
It was found that during onboard engine units operations
one can observe bright UV glow of the own ISS atmosphere
in OH molecular bands related to decay and photolysis of the
water vapor contained in engine exhaust gas.
Relaksatsya-UF-Vkhod
Unique in situ UV experimental data about spatial structure and intensity of the emission
spectrum from spacecraft plasma formations and transport vehicle fragments during
hypersonic reentry into the atmosphere throughout the entire descent trajectory, which
includes entering and fragmentation of a Soyuz-TMA and a European cargo vehicle ATV Jules
Verne were obtained.
Relaksatsya-Stend
A global glow of the Earth upper atmosphere at altitudes of about 100 to 140 km in the
southern and northern hemispheres was discovered under impact of powerful radiofrequency
emission from the Earth to the Earth’s ionosphere and atmosphere—a probable mechanism of
modification of the atmosphere is actuation of Alfven oscillations in the ionosphere.
Relaksatsya-Groza
For the first time in the UV spectrum, an investigation researched spatio-temporal and power
budget of global thunderstorm phenomena in upper Earth’s atmosphere (elves, sprites, jets,
etc), as well as new, previously unknown data about their origin and development were
received over the equatorial Africa.
Relaksatsya-Spektr
According to systematic UV-spectrum measurements of brightness in the upper atmosphere, it
was revealed the phenomenon of bifurcation of the high-altitude limb at altitudes of about 100
km and, respectively, concentration of atomic oxygen layer over the seismically active area
Processed video frame of exhaust
jets from docking and orientation
engine, 2010. Roscosmos image.