+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   30955 Weiser (1994 PG29) Classification: Main-belt Asteroid          SPK-ID: 2030955 [ 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 .1758334114431603 7.0258e-08   a 3.191149405889738 4.1209e-08 AU q 2.630038719427332 2.3012e-07 AU i 6.887702407569741 8.6368e-06 deg node 350.8986273461198 6.3777e-05 deg peri 95.51795014925582 7.198e-05 deg M 6.236700051914035 2.7379e-05 deg tp 2456364.427894670625 (2013-Mar-12.92789467) 0.00015836 JED period 2082.18413752151 5.70 4.0332e-05 1.104e-07 d yr n .1728953715056726 3.349e-09 deg/d Q 3.752260092352146 4.8455e-08 AU   Orbit Determination Parameters    # obs. used (total)      832      data-arc span      8559 days (23.43 yr)      first obs. used      1989-11-04      last obs. used      2013-04-11      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .57384      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:56:22   Additional Information  Earth MOID = 1.65688 AU   T_jup = 3.161  [ 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 12.7 mag n/a PDS3 (MPO 18594)   30955 Weiser           Discovered 1994 Aug. 12 by E. W. Elst at the European Southern Observatory. German palaeontologic geologist Thorolf Weiser (b. 1938) published an in situ investigation of the Nördlinger Ries crater. He later changed his field to mineralogy, using electron-microprobe analysis for the determination of several new minerals. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20080122/MPCPages.arc Last Updated: 2008-03-05 [ show close-approach data ] Alternate Designations  1994 PG29 = 1989 VM2 = 2000 QH8  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-20 00:10 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin