A.A. Baranov – Ph.D.(Phys.-Math.), Engineer, Higher School of Applied Physics and Space Technologies, Institute of

Physics, Nanotechnology and Telecommunications of Peter The Great St. Petersburg Polytechnic University E-mail: 79111700994@ya.ru

S.V. Ermak – Ph.D.(Phys.-Math.), Associate Professor, Department «Quantum Electronics», Institute of Physics,

Nanotechnology and Telecommunications of Peter The Great St. Petersburg Polytechnic University

E-mail: serge_ermak@mail.ru

R.K. Lozov – Student, Institute of Physics, Nanotechnology and Telecommunications of Peter The Great

St. Petersburg Polytechnic University

E-mail: Lozov-RK@ya.ru

V.V. Semenov – Dr.Sc.(Phys.-Math.), Professor, Leading Engineer, Higher School of Applied Physics and Space

Technologies, Institute of Physics, Nanotechnology and Telecommunications of Peter The Great St. Petersburg

Polytechnic University

E-mail: Vladimir_semenov@mail.ru

O.V. Ermak – Ph.D.(Eng.), Associate Professor, Institute of Civil Engineering of Peter The Great St. Petersburg

Polytechnic University

E-mail: ermak_olgavalentinovna@mail.ru

An experimental assessment of the influence of the orientational frequency shift of a quantum standard with optical pumping on a gas cell in the total error of the Galileo navigation system satellite ephemeris is presented. Experimental and calculated dependences of the orientational shift of the microwave resonance frequency at the 0–0 transition under conditions of isotopic filtering of pumped rubidium87 atoms in the presence of a buffer gas are obtained for different ratios of the spectral radiation components of a lamp source. A comparison of the calculated and experimental data of the time dependence of the orientation error of the Galileo satellite is carried out, its role in the version of the quantum frequency standard on the absorption gas cell with anti-relaxation coating is shown.

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