HIGH-ACCURACY SPATIAL ORIENTATION OF SCIENTIFIC DEVICES TAKING IN ACCOUNT THE
ISS HULL DEFORMATION (PRIVYAZKA)
Research Area: Spacecraft and Orbital Environments
Expedition(s): 1-9
Principal Investigator(s): ● Mikhail Y. Belyaev, PhD, S.P. Korolev Rocket and Space
Corporation Energia, Korolev, Russia
RESEARCH OBJECTIVES
The High-Accuracy Spatial Orientation of
Scientific Devices Taking in Account the ISS Hull
Deformation (Privyazka) investigation assesses
hull deformation and determines the error
values of the reference coordinate system, to
provide quality results for ISS investigations. For
experiments to observe celestial objects, the
Earth's surface, to study the atmosphere, and
some others, it is important to have information
on the accurate spatial orientation of the sensing
axes of research devices.
SPACE BENEFITS
The results will be used to increase the accuracy
of determining the orientation of scientific
equipment installed on the ISS, for planning, and high quality analysis of scientific experiments
that require, for example, accurate tracking by scientific equipment of objects being studied, or
knowledge of spatial position with high accuracy. In addition, results may be used to design and
control other spacecraft and to conduct on them research and experiments, which require the
highly accurate spatial positioning of scientific equipment.
RESULTS
The obtained results correspond to the data existing in this field calculated during Salyut and
Mir station operations. Angular misalignments of the sensing axes of devices by approximately
1 - 2° due to ISS hull deformations occur just as they did on previous stations.
Nevertheless, the results obtained in the course of Privyazka enabled the development of
corresponding mathematical models and the obtained measurements processing methods in
order to determine ISS hull deformation, and device and system misalignments aiming to
increase the accuracy of determining their orientation in the reference coordinate system for
the high-quality analysis of scientific experiments conducted on the ISS.
This investigation is complete; however no publications are expected.
Still camera mounted on a window in the ISS RS.
Roscosmos image.