1. Variations of Protons and Doubly Ionized Helium Ions in the Solar Wind

   • A. A. Khokhlachev
   • M. O. Riazantseva
   • I. G. Lodkina

   OriginalPaper 29 November 2021 Pages: 415 - 426

   

2. The Experimental Spectrum of Variations of Cosmic Rays in a Wide Range of Hardness According to AMS-02 Data

   • V. G. Yanke
   • A. V. Belov
   • L. A. Trefilova

   OriginalPaper 29 November 2021 Pages: 427 - 432

   

3. Dynamics of the Radiation Environment in the Near-Earth Space in September–November 2020 according to the Meteor-M and Electro-L Satellite Data

   • I. N. Myagkova
   • A. V. Bogomolov
   • E. A. Ginzburg

   OriginalPaper 29 November 2021 Pages: 433 - 445

   

4. Space–Time Structure of Energetic Electron Precipitations according to the Data of Balloon Observations and Polar Satellite Measurements on February 1–6, 2015

   • A. D. Kugusheva
   • V. V. Kalegaev
   • V. S. Makhmutov

   OriginalPaper 29 November 2021 Pages: 446 - 455

   

5. On Possible Causes of Positive Disturbance of Global Electronic Content during a Complex Heliogeophysical Event on September 2017

   • M. V. Klimenko
   • V. V. Klimenko
   • E. V. Rozanov

   OriginalPaper 29 November 2021 Pages: 456 - 462

   

6. Spatial Structure of Polarization Jet according to NorSat-1 and Swarm Satellite Data

   • A. A. Sinevich
   • A. A. Chernyshov
   • M. M. Mogilevsky

   OriginalPaper 29 November 2021 Pages: 463 - 471

   

7. Long-Living Meteoroids Formed during Radial Expansion of Large Meteoroids

   • A. V. Mikhalev

   OriginalPaper 29 November 2021 Pages: 472 - 477

   

8. Characteristics of the Martian Magnetosphere according to the Data of the Mars 3 and Phobos 2 Satellites: Comparison with MGS and MAVEN Results

   • T. K. Breus
   • M. I. Verigin
   • J. A. Slavin

   OriginalPaper 29 November 2021 Pages: 478 - 492

   

9. Observation of Plasma Instability on the Dayside Region between Magnetosheath and Ionosphere of Mars

   • K. I. Kim
   • S. D. Shuvalov

   OriginalPaper 29 November 2021 Pages: 493 - 500

   

10. Adaptive Neural Formation-Keeping Control for Satellites in a Low-Earth Orbit

    • M. G. Shirobokov
    • S. P. Trofimov

    OriginalPaper 29 November 2021 Pages: 501 - 516

    

11. Optimization of Perturbed Spacecraft Trajectories Using Complex Dual Numbers. Part 2: Numerical Results

    • V. G. Petukhov
    • Sung Wook Yoon

    OriginalPaper 29 November 2021 Pages: 517 - 528

    

12. Satellite Angular Motion under the Action of SDOT Magnetic One Axis Sun Acquisition Algorithm

    • D. S. Roldugin
    • S. S. Tkachev
    • M. Yu. Ovchinnikov

    OriginalPaper 29 November 2021 Pages: 529 - 536

    

13. Erratum to: Use of the DBM Model to the Predict of Arrival of Coronal Mass Ejections to the Earth

    • K. B. Kaportseva
    • Yu. S. Shugay

    Erratum 29 November 2021 Pages: 537 - 537

14. Erratum to: The Influence of the Earth’s Oblateness on the Energy Integral and Some Characteristics of a Spacecraft’s Orbit

    • V. V. Ivashkin

    Erratum 29 November 2021 Pages: 538 - 538

15. Erratum to: Determination of the Probability of Collision of Near-Earth Space Objects Taking into Account Form and Orientation

    • M. O. Karatunov
    • A. A. Baranov
    • A. R. Golikov

    Erratum 29 November 2021 Pages: 539 - 539