+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   1385 Gelria (1935 MJ) Classification: Main-belt Asteroid          SPK-ID: 2001385 [ 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 .1049769071577796 6.2011e-08   a 2.74134465541303 1.6536e-08 AU q 2.453566772034261 1.6948e-07 AU i 6.928206706804913 6.6719e-06 deg node 115.034672406395 5.412e-05 deg peri 259.5652311200927 6.4148e-05 deg M 304.0205305208909 3.737e-05 deg tp 2456658.292433014432 (2013-Dec-31.79243301) 0.00017289 JED period 1657.84486256751 4.54 1.5001e-05 4.107e-08 d yr n .2171493896253155 1.9648e-09 deg/d Q 3.029122538791799 1.8272e-08 AU   Orbit Determination Parameters    # obs. used (total)      1304      data-arc span      29358 days (80.38 yr)      first obs. used      1932-11-30      last obs. used      2013-04-17      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .58815      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:44:01   Additional Information  Earth MOID = 1.46509 AU   T_jup = 3.331  [ 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 10.70 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2 diameter diameter 22.19 km 1.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2 geometric albedo albedo 0.1883   0.035 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2 SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1385 Gelria (1935 MJ)          Discovered 1935-May-24 by Van Gent, H. at Johannesburg (LS) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1935 MJ = 1932 WP = 1932 WQ = 1936 SN = 1948 GJ = 1952 DM3 = 1958 OD  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-Jun-19 09:25 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin