+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10658 Gretadevries (2281 T-1) Classification: Main-belt Asteroid          SPK-ID: 2010658 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07775875729022914 6.1966e-08   a 2.786281910423903 2.4793e-08 AU q 2.569624091609095 1.7206e-07 AU i 4.701723030336355 6.6375e-06 deg node 163.470836669081 7.2054e-05 deg peri 233.9078498049331 8.3612e-05 deg M 156.4139726654627 4.2979e-05 deg tp 2455662.410451466891 (2011-Apr-10.91045147) 0.00019896 JED period 1698.775582154819 4.65 2.2674e-05 6.208e-08 d yr n .2119173384534739 2.8285e-09 deg/d Q 3.002939729238712 2.6721e-08 AU   Orbit Determination Parameters    # obs. used (total)      1128      data-arc span      15368 days (42.08 yr)      first obs. used      1971-03-25      last obs. used      2013-04-21      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .55765      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:41:04   Additional Information  Earth MOID = 1.57895 AU   T_jup = 3.322  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.6 mag n/a PDS3 (MPC 34477)   10658 Gretadevries           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Greta de Vries (1967-2006) was the assistant to the director of the Kapteyn Astronomical Institute in Groningen, when she tragically died while on holiday. She was a beloved key staff member of the institute. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20061109/MPCPages.arc Last Updated: 2006-11-13 [ show close-approach data ] Alternate Designations  2281 T-1 = 1983 XV1 = 1995 KM2  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-Jun-19 07:43 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin