36 research outputs found
Investigation of atmospheric instability for communication experiments with the ESA's geostationary satellite ARTEMIS
The investigations of the atmospheric turbulence instability are carried out. The observations of different stars and different positions of stars in the sky performed with the AZT-2 telescope (diameter of 0.7 m) of the Main Astronomical Observatory, Kyiv, Ukraine, and at the Optical Ground Station (the 1.0-m telescope) of ESA at Canary Islands are described. Short exposures (40 ms) with CCD cameras in focal plane of objectives with the filters were used. The calculations of middle positions of star images were performed. The deviation of starβs image positions from the middle position was also performed. The atmospheric attenuation and FWHM (Full Width Half Maximum) function were calculated using the MIDAS/ROMAFOT software package. The results of analyses of experimental data obtained due to observations in different regions are also presented
Realization of the Vilnius photometric system for CCD-observations of selected sky areas at the Andrushivka Astronomical Observatory
We describe a set of glass UPXYZVS filters of the Vilnius photometric system of the Andrushivka Astronomical Observatory in Zhytomyr Region (Ukraine) [7]. They are installed at the Zeiss-600 Cassegrain reflector together with the 15-bit 1024Γ1024 CCD-camera S1C-017. The response curves of instrumental photometric systems are presented and a comparison of them with a standard system are analysed. Test observations in the Vilnius system of the star cluster IC 4665 with the Andrushivka filters were carried out in MayβJune 2003. The MIDAS/ROMAFOT and ASTROIMAGE software is adapted for digital processing of CCD-images of stellar fields. Comprehensive ground-based observations are being planned to design a catalogue of primary UPXYZVS CCD-standards in selected areas of the sky where are with radio sources, globular and open clusters, etc
Π¦ΠΈΡΡΠΎΠ²ΠΎΠΉ ΠΏΠ°Π½ΠΎΡΠ°ΠΌΠ½ΡΠΉ ΠΏΠΎΠ»ΡΡΠΈΠΌΠ΅ΡΡ Π΄Π»Ρ Π΄ΠΈΡΡΠ°Π½ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ ΠΈ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΡ ΠΏΠ°ΡΠ°ΠΌΡΡΠΎΠ² Π½Π΅Π±Π΅ΡΠ½ΡΡ ΡΠ΅Π»
Π¦ΠΈΡΡΠΎΠ²ΠΈΠΉ ΠΏΠ°Π½ΠΎΡΠ°ΠΌΠ½ΠΈΠΉ ΠΏΠΎΠ»ΡΡΠΈΠΌΠ΅ΡΡ β ΡΠ΅ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡ Π°ΡΡΡΠΎΠ½ΠΎΠΌΡΡΠ½ΠΎΡ ΡΠ΅Π»Π΅Π²ΡΠ·ΡΠΉΠ½ΠΎΡ ΡΡΡΠ°Π½ΠΎΠ²ΠΊΠΈ Π½Π° Π±Π°Π·Ρ ΠΏΠ°Π½ΠΎΡΠ°ΠΌΠ½ΠΎΠ³ΠΎ Π²ΠΈΡΠΎΠΊΠΎΡΡΡΠ»ΠΈΠ²ΠΎΠ³ΠΎ ΠΏΡΠΈΠΉΠΌΠ°ΡΠ° "ΡΡΠΏΠ΅ΡΡΠ·ΠΎΠΊΠΎΠ½" ΡΠΈΠΏΡ ΠΠ-804 Ρ ΠΎΠΏΡΠΈΠΊΠΎ-
ΠΌΠ΅Ρ
Π°Π½ΡΡΠ½ΠΎΠ³ΠΎ Π±Π»ΠΎΠΊΡ Π΄ΠΎ ΡΠΊΠ»Π°Π΄Ρ ΡΠΊΠΎΠ³ΠΎ Π²Ρ
ΠΎΠ΄ΠΈΡΡ ΠΏΠΎΠ»ΡΡΠΎΡΠ΄Π½ΠΈΠΉ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΎΡ Π· ΠΎΠ±Π΅ΡΡΠΎΠ²ΠΎΡ Π°Ρ
ΡΠΎΠΌΠ°ΡΠΈΡΠ½ΠΎΡ ΡΠ°Π·ΠΎΠ²ΠΎΡ ΠΏΠ»Π°ΡΡΠΈΠ½ΠΊΠΎΡ Π²Π΅Π»ΠΈΠΊΠΎΠ³ΠΎ ΡΠΎΠ·ΠΌΡΡΡ.Digital panoramic polarimeter is an
astronomical television device with panoramic high β sensitivity receiver βsuperisokoneβ, LI-804 and mechanical block which consist of the polaroid modulator and large rotating achromatic phase β shift plate.Π¦ΠΈΡΡΠΎΠ²ΠΎΠΉ ΠΏΠ°Π½ΠΎΡΠ°ΠΌΠ½ΡΠΉ ΠΏΠΎΠ»ΡΡΠΈΠΌΠ΅ΡΡ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΠ΅Ρ ΡΠΎΠ±ΠΎΠΉ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡ Π°ΡΡΡΠΎΠ½ΠΎΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π»Π΅Π²ΠΈΠ·ΠΈΠΎΠ½Π½ΠΎΠΉ ΡΡΡΠ°Π½ΠΎΠ²ΠΊΠΈ Π½Π° Π±Π°Π·Π΅ ΠΏΠ°Π½ΠΎΡΠ°ΠΌΠ½ΠΎΠ³ΠΎ Π²ΡΡΠΎΠΊΠΎΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΈΠ΅ΠΌΠ½ΠΈΠΊΠ° Β«ΡΡΠΏΠ΅ΡΠΈΠΊΠΎΠ·ΠΎΠ½Β» ΡΠΈΠΏΠ° ΠΠ-804 ΠΈ ΠΎΠΏΡΠΈΠΊΠΎ-ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π±Π»ΠΎΠΊΠ°, Π² ΡΠΎΡΡΠ°Π² ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ Π²Ρ
ΠΎΠ΄ΠΈΡ ΠΏΠΎΠ»ΡΡΠΎΠΈΠ΄Π½ΡΠΉ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΎΡ Ρ Π²ΡΠ°ΡΠ°ΡΡΠ΅ΠΉΡΡ Π°Ρ
ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ°Π·ΠΎΠ²ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½ΠΊΠΎΠΉ Π±ΠΎΠ»ΡΡΠΎΠ³ΠΎ ΡΠ°Π·ΠΌΠ΅ΡΠ°
DIGITAL ARCHIVE OF UKRVO: THE POSITIONAL ACCURACY OF MINOR PLANETS DETERMINATIONS
Scanning and astrometric processing of two 30x30 cm photographic plates with images of minor planets were conducted. The plates were obtained at the double wide-angle astrograph (DWAA, 400/2000) on the program of photographic sky survey and the program of small planetsβ observations. The plates were digitized using a flatbed scanner Epson Expression 10000XL. Images were obtained in the gray range of 16 -bits with a resolution of 1200dpi (> 11,000 pix along the one of the axies) and included into the UkrVO Joint Digital Archive (JDA). The plates are related to GUA040C observational archive. Image processing has been carried out in software package LINuS/MID AS/ROM AFOT. Topocentric equaΒtorial coordinates for the second exposition minor planet images were obtained with a single measurement error Β± 0.1 " and Β± 0.3" for coordinate and Β± 0.2m for magnitudes in the Tycho-2 catalog as reference.
Scanning results of images of the 60th declination zone of the FON project. Measurement reduction methods and characterization of the output catalog
FLATBED SCANNERS IN GOLOSIIV PLATE ARCHIVE DIGITIZATION
The problems associated with the application of budget flatbed scanners to digitize astronegatives are discussed.Β