PROCESSES OF RELAXATION IN THE ULTRAVIOLET BAND SPECTRUM BY HIGH-VELOCITY
INTERACTION OF EXHAUST PRODUCTS ON ISS (RELAKSATSIYA), FIVE INVESTIGATIONS
Research Area: Near-Earth Space Environment
Expedition(s): 4-6, 8-13, and 15-ongoing
Principal Investigator(s): ● Yuri A. Plastinin, PhD, Central Research Institute for
Machine Building , Korolev, Russia
RESEARCH OBJECTIVES
Processes of Relaxation in the Ultraviolet Band Specrum by High-Velocity Interaction of Exhaust
Products on ISS (Relaksatsiya) comprises 5 distinct investigations to make UV spectrometer
observation of chemiluminescent chemical reactions and
atmospheric optical phenomena occurring during high-speed
interaction between jet engine exhausts and the Earth’s upper
atmosphere, atmospheric optical phenomena during re-entry of
bodies into rarified upper atmosphere and its optical properties in
the UV range.
Relaksatsiya-Vykhlop (Relaxation - Exhaust)
Study on interaction between spacecraft’s rocket engines exhaust
and the ionosphere and the own International Space Station (ISS)
external atmosphere.
Relaksatsiya-UF-Vkhod (Relaxation - UV-Entry)
Study on spatio-temporal structure of gas-flame formations during
spacecraft entry into the Earth atmosphere and their fragmentation.
Relaksatsiya -Stend (Relaxation - Stand)
Study on modification of the Earth atmosphere and ionosphere under impact of powerful
radiofrequency emission from the Earth.
Relaksatsiya-Groza (Relaxation – Thunderstorm)
Study on global electromagnetic processes in the Earth’s upper atmosphere (thunderstorms,
sprites, etc) in the UV portion of the spectrum.
Relaksatsiya-Spektr (Relaxation – Spectrum)
Hyperspectral monitoring of the Earth’s atmosphere and the “atmosphere-surface of the Earth”
system in the ultraviolet, visible, and infrared portions of the spectrum.
EARTH BENEFITS
The results of system and exploratory studies on natural and anthropogenous global
phenomena in the Earth’s atmosphere and ionosphere can be used for: development of future
Earth remote-sensing spacecraft; development of new approaches to forecasting of
earthquakes and other catastrophic phenomena; development of advanced methods for Earth
The Fialka-MV-Kosmos
Multispectral system
aboard the ISS RS.
Roscosmos image