A computer‐readable version of the Moon's charts which refer to the center of its mass and the principal axes of the inertia were constructed on the basis of large‐scale star calibrated lunar photographies. The accuracy of six charts have been examined by reduction of observations of lunar occultations on the basis of the theory LE200.

[1] This paper presents investigations of the local fluctuations of the earth's crust using data of latitude observations. It was installed that there is anomalous deflections of the observed latitude before earthquakes. At the average the values of the anomalous variations equal 0.10 00 . They does not depend on powers of the earthquake and data of the latitude observations is a good indicator in studying local geodynamic phenomena. There is a dependence of anomalous fluctuations upon time.Citation: Lapaeva, V. V., V. P. Meregin, and Y. A. Nefedjev (2005), Study of the local fluctuations of the Earth's crust using data of latitude observations, Geophys. Res. Lett., 32, L24304,

Abstract. This paper presents formulas for the calculation of the refraction anomalies caused by the inclination of atmospheric boundary layers. Anomalies were calculated for a few zenith distances for several different atmospheric models. It was established, that near Earth the atmospheric boundary layers have the global inclination in meridian plane near one minute of arc from North to South. They are calculated with standard deviation ±0. 2 − ±0. 35. The tilts are decreased gradually with the altitude and equal nearly 0 on the heights 8-10 km. Then direction of inclination is changed on opposite (from South to North) and maximum 1' reaches on the heights 15-18 km. Next inclinations slowly decrease and equal 0 on the heights 28-30 km.

A new method of comparative estimation of the reliable data of lunar maps is offered. The estimation is made by comparison of high-altitude lines using fractal analysis. The influence of the variances of the Moon's macrofigure is determined by the method of comparison of fractal dimensions.Research on the figure and rotation of the Moon including work on the construction of charts of its marginal zone by various methods is traditionally carried out at the Engelhardt Astronomical Observatory (EAO). In particular, this research is important for reduction in lunar occultations on the basis of which it is possible to solve a number of astrometric and astrophysical problems.A number of factors greatly influence the accuracy of the results of these observations: the accuracy of recording the moment of occultation, the errors in the star coordinates, the accuracy of ephemeris position of the Moon and the accuracy of the charts of its marginal zone.By now, highly accurate theories of the movement of the Moon have been developed and the coordinates of the stars have been determined on the basis of space measurements with an accuracy of several multiarcseconds. Therefore difficulty in the process of reduction in lunar occultations arises during accounting for the irregularities of its limb.The existing charts of the marginal zone of the Moon have defects. Research on lunar maps of a marginal zone is complicated. First of all, it concerns the reliability of the data given on the maps. To resolve this task, one method of research is the comparison of the structure of the high-altitude lines of data appropriate to identical lunar coordinates. However, such a comparison requires a large volume of calculations. It is known that to resolve the many problems in the description of a regional zone a macrofigure with a high accuracy is required.We researched the influence of the macrofigure of the Moon by the method of comparison of fractal dimensions. For this purpose we constructed detailed maps of the marginal zone of the Moon on the basis of data obtained from heliometric observations and taking into account the first model of the figure of the Moon given by Jakovkin (maps N1) (Nefedjev et al., 1990). For comparison, maps N2 (Nefedjev, 1958) were obtained. On the basis of observations obtained on the heliometer at EAO during 50 years, maps N1 and maps N2 are constructed. The charts contain isohypses of the marginal zone of the Moon extending over 10 on both sides of the mean position of the border line. In order to find by the aid of these charts the elevation of a given point of the limb above the mean level or to determine the irregularity of the limb, we have to compute, for the given position angle of this point (reckoned from the centre of the Moon's disc), two coordinates introduced by Hayn (1907), namely P and D, where P is the selenocentric longitude reckoned along the mean limb from the north pole of the Moon, like the position angles, and D is the latitude taken positively for that part of the disc that is nearer to t...

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