+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14812 Rosario (1981 JR1) Classification: Main-belt Asteroid          SPK-ID: 2014812 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2075984512350122 3.6446e-08   a 2.446746887560082 1.0574e-08 au q 1.938806023138523 9.1169e-08 au i 13.9605879617728 6.1895e-06 deg node 28.20391974248781 1.8622e-05 deg peri 225.3939087392059 2.4868e-05 deg M 63.93031369809576 1.6871e-05 deg tp 2458752.251674140395 (2019-Sep-25.75167414) 6.5283e-05 TDB period 1397.918954871637 3.83 9.0619e-06 2.481e-08 d yr n .2575256589414062 1.6694e-09 deg/d Q 2.954687751981642 1.2769e-08 au   Orbit Determination Parameters    # obs. used (total)      1303      data-arc span      13881 days (38.00 yr)      first obs. used      1981-05-09      last obs. used      2019-05-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50273      source      ORB      producer      Otto Matic      solution date      2019-May-30 02:16:30   Additional Information  Earth MOID = .951541 au   Jupiter MOID = 2.14721 au   T_jup = 3.429  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.1   n/a MPO473967   diameter diameter 4.881 km 0.492 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.258   0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   14812 Rosario           Discovered 1981 May 9 by the Félix Aguilar Observatory team at the El Leoncito Station. One of the largest cities in Argentina, Rosario is located near the Parana River. The city has a planetarium, and astronomical activities are carried out at the Physics Institute of the Rosario National University. The name was suggested by W. A. Fröger. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070926/MPCPages.arc Last Updated: 2007-09-30 Alternate Designations  1981 JR1 = 2000 CH95  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-11 15:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin