IMPROVING THE QUASAR VLBI NETWORK FOR DATA TRANSFER WITH THE NATIONAL RESEARCH COMPUTER NETWORK OF RUSSIA
Authors:
1.
Institute of Applied Astronomy of the Russian Academy of Sciences
2.
Institute of Applied Astronomy of the Russian Academy of Sciences
3.
Institute of Applied Astronomy of the Russian Academy of Sciences
4.
National Research Centre "Kurchatov Institute"
5.
National Research Centre "Kurchatov Institute"
6.
National Research Centre "Kurchatov Institute"
Type:
Сonference article
Published:
27.12.2024
Subject area:
UDK 004.7
UDK 52
UDK 53
UDK 520
UDK 521
UDK 523
UDK 524
UDK 52-1
UDK 52-6
GRNTI 41.00
GRNTI 29.35
GRNTI 29.31
GRNTI 29.33
GRNTI 29.27
GRNTI 29.05
OKSO 03.06.01
OKSO 03.05.01
OKSO 03.04.03
BBK 2
BBK 223
TBK 614
TBK 6135
BISAC SCI004000 Astronomy
BISAC SCI005000 Physics / Astrophysics
UDK 52
UDK 53
UDK 520
UDK 521
UDK 523
UDK 524
UDK 52-1
UDK 52-6
GRNTI 41.00
GRNTI 29.35
GRNTI 29.31
GRNTI 29.33
GRNTI 29.27
GRNTI 29.05
OKSO 03.06.01
OKSO 03.05.01
OKSO 03.04.03
BBK 2
BBK 223
TBK 614
TBK 6135
BISAC SCI004000 Astronomy
BISAC SCI005000 Physics / Astrophysics
Language:
English
Keywords:
techniques: interferometric; telescopes
Abstract (English):
This article presents the results of the phased integration of the VLBI complex ``Quasar'' into the National Research Computer Network of Russia (NIKS). The VLBI complex ``Quasar'' has implemented e-VLBI technology in Russia, enabling near real-time radio interferometric observations. This technology is critical for high-precision determination of Universal Time, which is essential for fundamental and applied space research, particularly for the GLONASS system. The complex consists of three observatories: ``Badary'' (Republic of Buryatia), ``Zelenchukskaya'' (Karachay-Cherkess Republic), and ``Svetloe'' (Leningrad Region), with a fourth under construction in Primorsky Krai. Each observatory can register data at speeds up to 16 Gbit/s, while the correlator in St. Petersburg can receive data at up to 96 Gbit/s. The current data transmission from ``Badary'' and ``Zelenchukskaya'' is limited to 2 Gbit/s, restricting the complex’s functionality. Increasing the transfer speed to 8 Gbit/s or more would significantly improve capabilities. This article details the results of the data transfer speed tests conducted during hourly sessions to the Center for Correlation Processing of RAS in the NIKS network. Additionally, the article explores options for connecting the nearby academic organizations of the IAA RAS to the NIKS network via fiber-optic cable, enhancing the overall data transmission efficiency and reliability of the VLBI complex. The integration of these observatories into NIKS is expected to enhance the ``Quasar'' VLBI complex, enabling more robust and rapid data processing for various scientific applications.
This article presents the results of the phased integration of the VLBI complex ``Quasar'' into the National Research Computer Network of Russia (NIKS). The VLBI complex ``Quasar'' has implemented e-VLBI technology in Russia, enabling near real-time radio interferometric observations. This technology is critical for high-precision determination of Universal Time, which is essential for fundamental and applied space research, particularly for the GLONASS system. The complex consists of three observatories: ``Badary'' (Republic of Buryatia), ``Zelenchukskaya'' (Karachay-Cherkess Republic), and ``Svetloe'' (Leningrad Region), with a fourth under construction in Primorsky Krai. Each observatory can register data at speeds up to 16 Gbit/s, while the correlator in St. Petersburg can receive data at up to 96 Gbit/s. The current data transmission from ``Badary'' and ``Zelenchukskaya'' is limited to 2 Gbit/s, restricting the complex’s functionality. Increasing the transfer speed to 8 Gbit/s or more would significantly improve capabilities. This article details the results of the data transfer speed tests conducted during hourly sessions to the Center for Correlation Processing of RAS in the NIKS network. Additionally, the article explores options for connecting the nearby academic organizations of the IAA RAS to the NIKS network via fiber-optic cable, enhancing the overall data transmission efficiency and reliability of the VLBI complex. The integration of these observatories into NIKS is expected to enhance the ``Quasar'' VLBI complex, enabling more robust and rapid data processing for various scientific applications.
Keywords:
techniques: interferometric; telescopes
techniques: interferometric; telescopes
1. Abramov A., Gonchar A., Evseev A., et al., 2023, Information Technologies, 12, p. 615
