+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2074992004587753 8.8216e-09   a 2.446461764444344 8.3688e-09 au q 1.938822904369178 2.0366e-08 au i 13.96100782295655 3.9297e-07 deg node 28.20271821201712 2.798e-06 deg peri 225.3640412914618 6.8045e-06 deg M 115.4859725515042 5.2551e-06 deg tp 2458752.133856674123 (2019-Sep-25.63385667) 1.9473e-05 TDB period 1397.674609575024 3.83 7.1717e-06 1.964e-08 d yr n .2575706802812003 1.3216e-09 deg/d Q 2.954100624519509 1.0105e-08 au   Orbit Determination Parameters    # obs. used (total)      1901      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      .48049      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:39:59   Additional Information  Earth MOID = .950146 au   Jupiter MOID = 2.14648 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 14.07   n/a E2020-QM5   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-Apr-22 02:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin