+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120178 (2003 OP32) Classification: TransNeptunian Object          SPK-ID: 2120178 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1091053685156988 7.0469e-06   a 43.48583847381438 0.00079224 au q 38.74130004191471 0.0005347 au i 27.13485172400258 3.8174e-05 deg node 183.0160372883021 4.7227e-05 deg peri 71.89028497471264 0.006616 deg M 72.35327078013177 0.0068576 deg tp 2437949.347998284768 (1962-Oct-11.84799828) 1.4221 TDB period 104741.8401256093 286.77 2.8623 0.007837 d yr n .003437021915676467 9.3926e-08 deg/d Q 48.23037690571405 0.00087868 au   Orbit Determination Parameters    # obs. used (total)      428      data-arc span      11070 days (30.31 yr)      first obs. used      1990-07-21      last obs. used      2020-11-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .4129      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:40:01   Additional Information  Earth MOID = 37.8292 au   Jupiter MOID = 33.9127 au   T_jup = 5.234  [ 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 4.06   n/a E2021B55   rotation period rot_per 9.71 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Benecchi, S.D.; Sheppard, S.S. (2013) Astron. J. 145, A124.] [Thirouin, A.; Sheppard, S.S.; Noll, K.S.; Moskovitz, N.A.; et al. (2016) Astron. J. 151, A148.] 120178 (2003 OP32)          Discovered 2003-Jul-26 by Brown, M. E., Trujillo, C. A., Rabinowitz, D. at Palomar Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2021-Feb-25 17:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin