+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   437 Rhodia (1898 DP) Classification: Main-belt Asteroid          SPK-ID: 2000437 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 66 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2470426901523322 5.3363e-08   a 2.386171480319446 6.8275e-09 AU q 1.796685258656557 1.2703e-07 AU i 7.355611924486309 6.4795e-06 deg node 263.3449457419888 4.5854e-05 deg peri 61.49445569612321 4.7261e-05 deg M 35.07528183688969 1.2521e-05 deg tp 2456269.325453479771 (2012-Dec-07.82545348) 4.6651e-05 JED period 1346.328077045327 3.69 5.7783e-06 1.582e-08 d yr n .2673939629856504 1.1476e-09 deg/d Q 2.975657701982334 8.5142e-09 AU   Orbit Determination Parameters    # obs. used (total)      1289      data-arc span      41688 days (114.14 yr)      first obs. used      1898-07-18      last obs. used      2012-09-06      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .57824      data source      ORB      producer      Otto Matic      solution date      2013-Mar-29 14:55:04   Additional Information  Earth MOID = .798155 AU   T_jup = 3.482  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.41 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 diameter diameter 13.12 km 0.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 rotation period rot_per 56. h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on fragmentary lightcurve(s), may be completely wrong. Published Reference List: [Binzel, R.P. (1987) Icarus 72, 135-208.] geometric albedo albedo 0.7035   0.084 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 B-V BV .730 mag .030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=7.39 deg. 437 Rhodia (1898 DP)          Discovered 1898-Jul-16 by Charlois, A. at Nice Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-18 21:30 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin