+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .207350574997579 8.8191e-09   a 2.446708898985773 8.3475e-09 au q 1.93938240192938 2.0346e-08 au i 13.96002479204088 3.9296e-07 deg node 28.20121010362298 2.7982e-06 deg peri 225.3668821203204 6.8093e-06 deg M 165.9743483229933 5.3813e-06 deg tp 2458752.018655481709 (2019-Sep-25.51865548) 1.9491e-05 TDB period 1397.886398535976 3.83 7.1538e-06 1.959e-08 d yr n .2575316566332089 1.3179e-09 deg/d Q 2.954035396042167 1.0078e-08 au   Orbit Determination Parameters    # obs. used (total)      1903      data-arc span      14547 days (39.83 yr)      first obs. used      1981-05-09      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48407      source      ORB      producer      Otto Matic      solution date      2021-Jul-09 10:01:45   Additional Information  Earth MOID = .952367 au   Jupiter MOID = 2.14531 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 14.12   n/a MPCxxxxx   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 ] 2021-Aug-01 20:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin