+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5776 (1989 UT2) Classification: Main-belt Asteroid          SPK-ID: 2005776 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1671021320804288 1.5262e-08   a 2.575831778388089 9.7793e-09 au q 2.145404796338917 4.2214e-08 au i 12.1905780044865 3.8163e-07 deg node 224.2668651776156 1.9138e-06 deg peri 58.07790026314049 7.0197e-06 deg M 283.2564861830064 9.6242e-06 deg tp 2459522.394718851325 (2021-Nov-03.89471885) 4.137e-05 TDB period 1509.992089531046 4.13 8.5992e-06 2.354e-08 d yr n .2384118449996676 1.3577e-09 deg/d Q 3.006258760437261 1.1413e-08 au   Orbit Determination Parameters    # obs. used (total)      2351      data-arc span      13419 days (36.74 yr)      first obs. used      1984-06-01      last obs. used      2021-02-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42881      source      ORB      producer      Otto Matic      solution date      2021-Mar-16 18:08:03   Additional Information  Earth MOID = 1.15549 au   Jupiter MOID = 2.16309 au   T_jup = 3.376  [ 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 13.0   n/a MPO458889   rotation period rot_per 4.34079 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] 5776 (1989 UT2)          Discovered 1989-Oct-29 by Hioki and Kawasato at Okutama Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1989 UT2 = 1984 LH = 1988 JE2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-11 23:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin