+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3693 Barringer (1982 RU) Classification: Main-belt Asteroid          SPK-ID: 2003693 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2033581665843174 3.8685e-08   a 3.149081616236149 1.707e-08 au q 2.508690152333986 1.2434e-07 au i 14.91140247152491 4.2737e-06 deg node 178.8128444900796 1.4359e-05 deg peri 184.187492769402 1.6973e-05 deg M 283.1671706815267 1.1186e-05 deg tp 2459436.130849553959 (2021-Aug-09.63084955) 6.5452e-05 TDB period 2041.147088172092 5.59 1.6597e-05 4.544e-08 d yr n .1763714149196326 1.4341e-09 deg/d Q 3.789473080138311 2.0541e-08 au   Orbit Determination Parameters    # obs. used (total)      2411      data-arc span      23994 days (65.69 yr)      first obs. used      1954-11-24      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44332      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 23:06:36   Additional Information  Earth MOID = 1.50635 au   Jupiter MOID = 1.66893 au   T_jup = 3.124  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.8   n/a MPO365290   diameter diameter 27.494 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 6.626 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Pray, D. (2005) Minor Planet Bull. 32, 8-9.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] geometric albedo albedo 0.049   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   3693 Barringer (1982 RU)          Discovered 1982-Sep-15 by Bowell, E. at Flagstaff (AM) Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-20 15:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin