Contents

Cosmic Research

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Vol. 59, No. 1, 2021

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A Study of the Characteristics of a Terahertz Radiation Detector for the Solntse–Terahertz Scientific Apparatus

E. V. Kalinin, M. V. Philippov, V. S. Makhmutov, O. S. Maksumov, Yu. I. Stozhkov, A. A. Kvashnin, G. N. Izmailov and V. V. Ozolin p. 1  abstract

MMS Observations of Narrow-Band Quasi-Parallel Whistler Waves in the Flow Braking Region in Near-Earth Magnetotail

A. Yu. Malykhin, E. E. Grigorenko and D. R. Shklyar p. 6  abstract

Specific Features of the Reflection of Whistler Electromagnetic Waves, Incident on the Ionosphere from Above, in Day- and Nighttime Conditions

V. G. Mizonova and P. A. Bespalov p. 15  abstract

Comparison of the Results on Precipitation of High-Energy Electrons in the Stratosphere and on Satellites

G. A. Bazilevskaya, A. S. Dyusembekova, M. S. Kalinin, M. B. Krainev, V. S. Makhmutov, A. K. Svirzhevskaya, N. S. Svirzhevsky, Yu. I. Stozhkov and E. A. Tulekov p. 24  abstract

A Promising Experiment with a Gamma Ray Spectrometer Onboard a Mobile Spacecraft to Study the Elemental Composition of the Moon, Mars, and Other Celestial Bodies without an Atmosphere or with a Thin Atmosphere

A. A. Anikin, M. V. Djachkova, M. L. Litvak, I. G. Mitrofanov, M. I. Mokrousov, S. Yu. Nikiforov and A. B. Sanin p. 30  abstract

Retrospective on the Problem of Space Debris. Part 2. Monitoring of Space Debris of Natural Origin in Near-Earth Space Using Optical Methods of Meteor Astronomy

V. V. Mironov and A. K. Murtazov p. 36  abstract

Pareto-Optimum Requirements for the Accuracy of the Reflective Surface of Parabolic Reflectors of Space Mirror Antennas for Perspective Frequencies

A. N. Muranov p. 46  abstract

Natural Vibrations of a Spacecraft’s Solar Array Wing

A. K. Tomilin and G. R. Ziyakaev p. 53  abstract

Optimization of Spatial Lunar Landing Trajectories: Attainability Domains, Redirection, and Descent Profile Constraint

Yu. P. Ulybyshev p. 59  abstract

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