Content asteroid: (58534)Logos satellite: Zoe total number: 9 type: position dates: 2001-2007 observatory: 250 - Hubble Space Telescope Reference W.M. Grundy, K.S. Noll, F. Nimmo, H.G. Roe, M.W. Buie, S.B. Porter, S.D. Benecchi, D.C. Stephens, H.F. Levison, and J.A. Stansberry Five New and Three Improved Mutual Orbits of Transneptunian Binaries. Icarus. 2011. V. 213. Issue 2. P. 678-692. 2011Icar..213..678G Information relative to: primary reference frame: astrometric ICRF centre of frame: topocenter epoch of equinox: J2000 time scale: UTC reduction: not available coordinates: X, Y (secondary relative to primary) diff. refraction: no information receptor: CCD telescopes: Ntel 1 - ACS (HST HRC/ACS (High-Resolution Camera of the Advanced Camera for Surveys) Ntel 2 - WFPC2 ( HST WFPC2/PC (Planetary Camera of the Wide Field and Planetary Camera 2) Ntel 3 - NICMOS (HST NICMOS (Near Infrared Camera and Multi-Object Spectrometer) Ntel 4 - WFPC2(WF3) ( WFC3/UVIS (Wide Field Camera 3) Comment Format 1. Year of the moment of observation 2. Month of the moment of observation 3. Day of the moment of observation 4. Hour of the moment of observation with decimals, h 5. Number of telescope, Ntel 6. r - the distance from the Sun to the target, au 7. R - the distance from the observer to the target, au 8. g - the phase angle - the solar phase angle, degrees 9. X - relative right ascension, arcsec 10. SigX - the error of X, arcsec 11. Y - relative declination, arcsec 12. SigY - the error of Y, arcsec 13. Vprim - visual magnitude for primary body, -99.9 if value is not given 14. sigVp - estimated uncertainties of Vprim, 0.0 if value is not given 15. Vsec - visual magnitude for secondary body, -99.9 if value is not given 16. SigVs - estimated uncertainties of Vsec, 0.0 if value is not given --------------------------------------------------------------- --------------------------------------------------- Year Day h Ntel r R g X SigX Y SigY Vprim SigVp Vsec SigVs Month au au deg arcsec arcsec arcsec arcsec -------------------------------------------------------------------------------------------------------------------