Contents

Solar System Research

Vol. 55, No. 5, 2021

Resistance of Enzymes to Ionizing Radiation under Model Conditions of the Martian Regolith

V. S. Cheptsov, A. A. Belov, E. A. Vorobyova, A. K. Pavlov, D. A. Tsurkov, D. A. Frolov, V. N. Lomasov and A. E. Chumikov p. 383  abstract

On the Fluxes of Dust Particles Detected near the Lunar Surface by the Chang’e 3 Lander

A. P. Golub’ and S. I. Popel p. 389  abstract

Results of the Photometric Observations of the NEA (2100) Ra-Shalom During an Encounter in 2019

S. Kh. Abdulloev, N. N. Kiselev and Sh. Sh. Shamsiddinov p. 398  abstract

Results of Photometric Observations of Comet P/2019 LD2 at the Sanglokh Observatory

G. I. Kokhirova, F. J. Rakhmatullaeva and S. A. Borisenko p. 402  abstract

Relationship Between the H5 Chondrite Composition, Structure and Mechanical Properties from the Example of NWA 12370 and Pultusk

S. A. Voropaev, I. I. Nugmanov, N. V. Dushenko, T. G. Kuz’mina, A. V. Korochantsev, V. G. Senin, A. A. Eliseev and Yan Jianguo p. 409  abstract

Features of the Dynamics of Objects Moving in the Zones of Orbital Resonances 1 : 4, 1 : 6, and 1 : 8 with the Earth’s Rotation

I. V. Tomilova, E. V. Blinkova and T. V. Bordovitsyna p. 420  abstract

METEOR-L Device on the Lunar Orbital Vehicle Luna-26: Space Dust Detector

E. N. Slyuta, V. V. Vysochkin, V. V. Ivanov, V. Yu. Makovchuk, A. I. Nazarov, V. I. Pogonin, E. A. Roskina, V. V. Safronov and L. P. Tatsiy p. 437  abstract

TERMO-LR Experiment on the Luna-27 Lander: Study of Thermophysical, Physicomechanical, and Electromagnetic Properties of the Lunar Soil

E. N. Slyuta, M. Ya. Marov, A. G. Dunchenko, V. Yu. Makovchuk, O. V. Morozov, A. I. Nazarov, V. V. Ivanov, V. I. Pogonin, E. G. Roskina, V. V. Safronov, B. N. Kharlov and L. P. Tatsiy p. 446  abstract

On the Attractive Force of an Elliptical Gaussian Ring

M. A. Vashkov’yak p. 467  abstract

Nonlinearity in Inverse Problems of the Dynamics of Jupiter’s Outer Satellites

M. A. Banshchikova, V. A. Avdyushev and E. E. Shmidt p. 475  abstract

Some Aspects of the Chronological Study and Use of the Terminology of the Restricted Circular Doubly Averaged Three-Body Problem

M. A. Vashkov’yak p. 481  abstract