Content asteroid: 2001 QW322 satellite; companion total number: 88 type: position dates: 2001-2010 observatory: 568 - Mauna Kea (CFHT, Gemini Observatory, Hawaii, USA) I11 - Gemini South observatory, Cerro Pachon 309 - European Southern Observatory (ESO, Chile), 675 - Palomar Mountain 695 - Kitt Peak (WIYN Observatory). 696 - Whipple Observatory, Mt. Hopkins (MMT observatory) 950 - La Palma (4.2-m William Herschel Telescope) 809 - La Silla Observatory Reference Parker, Alex H.; Kavelaars, J. J.; Petit, Jean-Marc; Jones, Lynne; Gladman, Brett; Parker, Joel CHARACTERIZATION OF SEVEN ULTRA-WIDE TRANS-NEPTUNIAN BINARIES The Astrophysical Journal, 743:1 (20pp), 2011 2011ApJ...743....1P Information relative to: center of mass of the binary reference frame: astrometric ICRF centre of frame: topocenter epoch of equinox: J2000 time scale: UTC reduction: not available coordinates: s, p (separation, position angle) receptor: CCD telescopes: 1 - CFHT 3.6m 2 - Hale 5m telescope (Palomar obs.) 3 – VLT 8m (ESO) 4 – MPG/ESO 2.2m telescope 5 - Gemini-N 8m telescope 6 - Gemini-S 8m telescope 7 - WIYN 3.5m telescope 8 - WHT 4.2m (William Herschel Telescope) 9 - MMT 6,5m (Multiple Mirror Telescope) 10- Gemini MultiObject Spectrograph (GMOS) Comments. Observation data are available on the Internet at http://iopscience.iop.org/0004-637X/743/1/1/suppdata/apj403505t2_mrt.txt See also http://iopscience.iop.org/article/10.1088/0004-637X/743/1/1/meta Format 1. JD - Julian Date of the observation 2. s - separation in the tangent plane, arcsec 3. p - position angle, degree 4. Sig p - positional error, degree 5. Ntel - number of telescope 6. Code - Code of observatory ------------------------------------------------------------------ JD s p Sig s Ntel Code arcsec deg arcsec ------------------------------------------------------------------