Aims. Astrometric observations performed by the Gaia Follow-Up Network for Solar System Objects (Gaia-FUN-SSO) play a key role in ensuring that moving objects first detected by ESA's Gaia mission remain recoverable after their discovery. An observation campaign on the potentially hazardous asteroid (99 942) Apophis was conducted during the asteroid's latest period of visibility, from 12/21/2012 to 5/2/2013, to test the coordination and evaluate the overall performance of the Gaia-FUN-SSO . Methods. The 2732 high quality astrometric observations acquired during the Gaia-FUN-SSO campaign were reduced with the Platform for Reduction of Astronomical Images Automatically (PRAIA), using the USNO CCD Astrograph Catalogue 4 (UCAC4) as a reference. The astrometric reduction process and the precision of the newly obtained measurements are discussed. We compare the residuals of astrometric observations that we obtained using this reduction process to data sets that were individually reduced by observers and accepted by the Minor Planet Center. Results. We obtained 2103 previously unpublished astrometric positions and provide these to the scientific community. Using these data we show that our reduction of this astrometric campaign with a reliable stellar catalog substantially improves the quality of the astrometric results. We present evidence that the new data will help to reduce the orbit uncertainty of Apophis during its close approach in 2029. We show that uncertainties due to geolocations of observing stations, as well as rounding of astrometric data can introduce an unnecessary degradation in the quality of the resulting astrometric positions. Finally, we discuss the impact of our campaign reduction on the recovery process of newly discovered asteroids.

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The observations of meteors using optical telescopes equipped with TV-cameras and the observations in radio signals using FM radio and TV translators are started in RI NAO since 2010.The main purpose of observations is -in optics -statistics of meteors at night time, the calculation of flux maximum, the calculation of the coordinates of the radiant flux, -in the radio range -statistics of meteors within 24 hours, the calculation of flux maximum, and its width, the definition of the velocity of meteor.Optical observations of meteors at the RI NAO are conducted using Meteor patrol, which includes two optical telescopes (D = 47mm, F = 85mm) equipped with a TV CCD cameras 8.6 × 8.3μ ). The field of view of each telescope is 4.2• × 3.2• . The process of observation and coordinate-photometric processing is automated using original software developed by the RI NAO. Software implements the method for automatical detecting of meteors using the search of cell of its image according signal/noise ratio which exceeds the liminal value on previous frames. In addition to the signal/noise ratio, the velocity of objects that allows not to register objects, such as satellites, airplanes, birds, and noises of CCD camera is also analyzed.In 2011-2012, regular observations were conducted at the meteor patrol in RI NAO, more than 1200 meteors with the longitude of (0.5 − 4.5)• and brightness (1-5)m were recorded. The error of reference system is (1-6)". Error in determining of meteor trajectories arc in right ascension and declination was (10-12)". Error estimate of the pole of a large circle of the meteor trajectory was (3-13)'.In the radio band the observations of meteors are carried out by detecting the horizon FM radio signal, which is reflected from the meteor trail. FM station in Kielce (Poland) is used as signal source.Hardware and software package is designed. It includes a highly directional antenna, PC with TV/FM-tuner and software for automatic registration of meteors. Automatic extraction of fragments of audio signal of FM radio stations in the time-frequency space using the FFT algorithm is used. The original software is developed by the NAO.The data processing of observations all of the data is carried out and more than 100,000 meteoric phenomena are given. The characteristic bursts of meteors for all major meteor showers are detected from the time series of observations.A comparison of data of automatic processing of radio observations in the NAO with observations of meteors by video observations of meteors IMO network were conducted, the correlation coefficient was > 0.5. 183https://www.cambridge.org/core/terms. https://doi

The main results of meteor observations in optical range during 2012-beginning 2013 are stated in the article. Comparative data of observation statistics and using different lens are also given. The results of first double station meteor observations are shown too.

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