Observations of GEO and LEO Satellites: Radio Engineering Means of the Mykolaiv Astronomical Observatory

Authors

  • F. I. BUSHUEV Research Institute «Mykolaiv Astronomical Observatory»
  • M. P. KALIUZHNYI Research Institute «Mykolaiv Astronomical Observatory»
  • V. F. KRIUCHKOVSKYI Research Institute «Mykolaiv Astronomical Observatory»
  • M. O. KULICHENKO Research Institute «Mykolaiv Astronomical Observatory»
  • O. V. SHULGA Research Institute «Mykolaiv Astronomical Observatory»
  • Z. ZHANG Shanghai Astronomical Observatory
  • V. BEZRUKOVS Ventspils University of Applied Sciences
  • YE. V. MALYNOVSKYI Rivne Minor Academy of Science of School-Age Youth
  • O. M. REZNICHENKO Institute of Radio Astronomy of the NASU
  • O. B. BRYUKHOVETSKY Western Center of Radio Engineering Surveillance
  • G. TUCCARI HAT-Lab srl, Spin-off Company of Italian National Astrophysics Institute

DOI:

https://doi.org/10.15407/knit2022.02.048

Keywords:

Doppler Effect, geostationary satellites, interferometer, low-Earth orbit satellites

Abstract

The radio engineering means of the RI “Mykolaiv Astronomical Observatory” are fully passive. To track satellites, they use radio signals emitted by the satellites themselves. Thus, the following means were developed and put into operation: 1) Simple INTerferometer NETwork (SintNet) for monitoring the orbital position of geostationary (GEO) satellites; 2) Doppler station for clarifying the orbital elements of low Earth orbit (LEO) satellites.
       Two SintNets operate now: European and Chinese. The European SintNet consists of 10 stations and tracks three co-located satellites simultaneously. The Chinese SintNet consists of four stations and tracks one satellite. The positional error (standard deviation) of satellites is about 200 m.
      The Doppler station operates in the frequency range 430-440 MHz. Signal spectrum analysis is used to determine the frequency F(t) of the radio signal emitted by an LEO satellite and received by the station at time t. The SGP4/SDP4 analytical model of the satellite motion is applied to analyze F(t) and to clarify the elements of the satellite orbit. Errors in measuring the Doppler frequency shift and time are 4 sm/s and 30 ms, respectively.

References

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Published

2024-05-02

How to Cite

BUSHUEV, F. I., KALIUZHNYI, M. P., KRIUCHKOVSKYI, V. F., KULICHENKO, M. O., SHULGA, O. V., ZHANG, Z., BEZRUKOVS, V., MALYNOVSKYI, Y. V., REZNICHENKO, O. M., BRYUKHOVETSKY, O. B., & TUCCARI, G. (2024). Observations of GEO and LEO Satellites: Radio Engineering Means of the Mykolaiv Astronomical Observatory. Space Science and Technology, 28(2), 48–53. https://doi.org/10.15407/knit2022.02.048

Issue

Vol. 28 No. 2 (2022): Space Science and Technology

Section

Space Environment Monitoring and Space Debris