Transactions Is. 49. — SPb.: IAA RAS, 2019. — 108 p.

ISBN 978-5-93197-064-2

Transactions Is. 49. — SPb.: IAA RAS, 2019. — 108 p.

This special issue of the Transactions of IAA RAS contains the materials of the PNT-2019 — the All-Russian Conference which took place in April 2019 in the IAA RAS, St. Petersburg and was devoted to the fundamental and applied scientific research in positioning, navigation and timing (PNT). The articles collected here cover a wide range of theoretical, methodological, organizational and legal PNT issues. Particular attention is paid to the GLONASS system in the aspects of its maintenance, usage and development; the reference systems created and maintained; the Earth orientation parameters monitored; time scales stored and synchronized; the Earth’s gravity field and its parameters being determined, etc.

The following modern high-precision technical means and methods of PNT are described in detail: radio interferometric network with very long baselines; satellite and lunar laser ranging systems; global navigation satellite systems; time and frequency standards; geographic information systems, etc. Various methods to colocate different technical means are considered.

The results of the most recent IAA RAS scientific investigations are included in this collection as well.

These articles are written for specialists in physics and astronomy.


M. V. Vasilyev, E. I. Yagudina, V. S. Sharkov, Yu. S. Bondarenko, D. A. Marshalov Preliminary Results from the Lunar Lander’s Radio Ranging Phase Observations Processed and Analysed 3
L. F. Vitushkin, F. F. Karpeshin, M. B. Trzhaskovskaya Principal Questions of the Current Project of Creation of the Nuclear Optical Frequency Standard 9
S. A. Volkov, G. V. Gerasimov, N. O. Maikapar, D. S. Sidorenkov Rubidium Clock with Pulsed Laser Pumping: State and Prospects 17
V. L. Gorshkov, A. S. Grishina, N. V. Scherbakova GNSS Monitoring of the Atmospheric Water Vapour over the Leningrad and Neighbouring Regions 23
V. K. Ivanov, E. V. Nosov Modulation Signal Distributor for the RT-32 Radio Telescope 32
V. O. Ken, A. E. Melnikov The Comparison of RASFX and DiFX Geodetic VLBI Processing Results 37
A. F. Kornev, R. V. Balmashnov, V. V. Koval, I. G. Kuchma, A. S. Davtian High-Energy Two-Colour Picosecond Laser for Precision Satellite Laser Ranging 43
E. V. Nosov, A. S. Berdnikov, D. A. Marshalov Delay Stability in Digital Backends of VLBI Radio Telescopes 52
S. L. Pasynok, I. V. Bezmenov, I. Yu. Ignatenko, E. N. Tsyba, V. E. Zharov EOP Evaluation and Activities to Improve the Facilities of the SSTF’s Main Metrological Centre 60
D. Sh. Fazilova, S. P. Kuzin, M. D. Makhmudov Time Series of Changes in the Coordinates of the GNSS and DORIS Stations in Kitab: investigation of the main components 69
Yu. S. Sheinman, A. S. Berdnikov, E. V. Nosov Automated Measurement System for Testing Local Oscillators of Radio Telescopes 78
V. А. Shor, D. Е. Vavilov, Т. А. Vinogradova, N. B. Zheleznov, А. V. Zaitsev, О. М. Коchеtоva, V. B. Кuznetsov, Yu. А. Chernetenko Software System “Prognoz” to Predict Collisions of Asteroids with the Earth and the Moon Part 2. Circumstances of Approaches and Collisions of Potentially Hazardous Celestial Bodies with the Earth and the Moon 83