+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   26853 (1992 UQ2) Classification: Main-belt Asteroid          SPK-ID: 2026853 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ 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 .2174201110558324 1.0145e-07   a 2.462318891300322 2.6731e-08 AU q 1.926961244498932 2.5079e-07 AU i 24.56447811875059 8.955e-06 deg node 44.25650250732946 2.7336e-05 deg peri 322.2832621833223 3.8449e-05 deg M 116.7617542454803 3.6631e-05 deg tp 2455942.766199807062 (2012-Jan-16.26619981) 0.00013988 JED period 1411.285477289206 3.86 2.2981e-05 6.292e-08 d yr n .2550865900579428 4.1538e-09 deg/d Q 2.997676538101712 3.2543e-08 AU   Orbit Determination Parameters    # obs. used (total)      640      data-arc span      8487 days (23.24 yr)      first obs. used      1990-01-26      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .56419      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:44:55   Additional Information  Earth MOID = .967799 AU   T_jup = 3.335  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.4 mag n/a PDS3 (MPO 14478)   rotation period rot_per 8.270 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Warner, B.D. (2010) Minor Planet Bul. 37, 150-151.] 26853 (1992 UQ2)          Discovered 1992-Oct-20 by Holt, H. E. at Palomar (675) Reference: 20010804/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1992 UQ2 = 1969 XC = 1998 DM  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 15:38 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin