J/PAZh/??/??? CCD observations of visual double stars. (Izmailov +, 2009) ================================================================================ Astrometric CCD observations of visual double stars at Pulkovo observatory. Izmailov I. S. = = ================================================================================ ADC_Keywords: Binaries, visual; Astrometric data Keywords: visual double stars, Positional data Abstract: We present the results of 3489 astrometric CCD-measurements of 361 visual double stars performed with the 26-inch refractor of the Pulkovo observatory in 2003 - 2007. Angular separations (rho) and position angles (theta) are provided. Mean values of standard errors are 0".009 in rho and 0.40(deg)/rho in theta, where rho is the separation in arcseconds. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 76 283296 Positional data of separate nights table2.dat 76 79156 Yearly average positions Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 5 I5 --- ADS ADS number 7- 16 A10 --- WDS WDS identifier (Cat. B/wds) 18-21 A5 --- Comp Components when more than 2 23-27 F5.3 yr ObsTime Time of observations 29-31 I3 --- N Number of CCD frames 33-40 F8.4 deg Theta Position Angle 42-48 F7.4 arcsec Rho Separation 50-55 F6.4 deg e_Theta Standard deviation in Theta 57-62 F6.4 arcsec e_Rho Standard deviation in Rho 64-69 F6.4 arcsec e_Theta1 Standard deviation of one CCD image in Theta 71-76 F6.4 arcsec e_Rho1 Standard deviation of one CCD image in Rho Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 5 I5 --- ADS ADS number 7- 16 A10 --- WDS WDS identifier (Cat. B/wds) 18-21 A5 --- Comp Components when more than 2 23-27 F5.3 yr MObsTime Mean time of observations 29-31 I3 --- N Number of nights 33-40 F8.4 deg Theta Position Angle 42-48 F7.4 arcsec Rho Separation 50-55 F6.4 deg e_Theta Standard deviation in Theta 57-62 F6.4 arcsec e_Rho Standard deviation in Rho 64-69 F6.4 arcsec e_Theta1 Standard deviation of one night in Theta 71-76 F6.4 arcsec e_Rho1 Standard deviation of one night in Rho Acknowledgements: Igor Izmailov, i_izmailov(at)mail.ru ================================================================================ (End) Igor Izmailov [Pulkovo Obs.] 21-May-2009