Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции
COMPARISON OF ASTROMETRIC CATALOGUES UCAC4, XPM, PPMXL. / Vityazev, V. V.; Tsvetkov, A. S.
Journees 2014 Systemes de reference spatio-temporels: Proceedings. Главная (Пулковская) астрономическая обсерватория РАН, 2015. стр. 24-27.Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции
}
TY - GEN
T1 - COMPARISON OF ASTROMETRIC CATALOGUES UCAC4, XPM, PPMXL.
AU - Vityazev, V. V.
AU - Tsvetkov, A. S.
PY - 2015
Y1 - 2015
N2 - We declare the first results of the representation of the differences between the propermotions UCAC4-PPMXL, XPM-UCAC4 and XPM-PPMXL by vector spherical harmonics in the 10 to 16 J mag range (2MASS photometric system). It was found that the PM systematic differences vary from - 15 to 15 mas/y. The proper motion XPM catalogue has the least systematic deviation from the PPMXL and UCAC4 for stars fainter J=13. The values of spin for UCAC4 on PPMXL are 5 times less than values for XPM on PPMXL and UCAC4. Magnitude equation is clearly seen through dependence of the decomposition coefficients and mutual spins on J magnitude. The influence of low order vectorspherial harmonics on the determination of the Ogorodnikov-Milne coefficients is clarified.
AB - We declare the first results of the representation of the differences between the propermotions UCAC4-PPMXL, XPM-UCAC4 and XPM-PPMXL by vector spherical harmonics in the 10 to 16 J mag range (2MASS photometric system). It was found that the PM systematic differences vary from - 15 to 15 mas/y. The proper motion XPM catalogue has the least systematic deviation from the PPMXL and UCAC4 for stars fainter J=13. The values of spin for UCAC4 on PPMXL are 5 times less than values for XPM on PPMXL and UCAC4. Magnitude equation is clearly seen through dependence of the decomposition coefficients and mutual spins on J magnitude. The influence of low order vectorspherial harmonics on the determination of the Ogorodnikov-Milne coefficients is clarified.
UR - https://syrte.obspm.fr/jsr/journees2014/pdf/ProcJSR2014_270415.pdf
UR - https://syrte.obspm.fr/jsr/journees2014/pdf/
M3 - Conference contribution
SN - 9785965108732
SP - 24
EP - 27
BT - Journees 2014 Systemes de reference spatio-temporels
PB - Главная (Пулковская) астрономическая обсерватория РАН
T2 - Journees 2014 Systemes de Reference Spatio-temporels
Y2 - 22 September 2014 through 24 September 2014
ER -
ID: 4736341