+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   208996 (2003 AZ84) Classification: TransNeptunian Object          SPK-ID: 2208996 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1832256869044368 1.0906e-05   a 39.29023537036414 0.00068915 au q 32.09125500599217 0.00095681 au i 13.59135812503161 4.1739e-05 deg node 252.173597297057 0.00020858 deg peri 15.90645167056302 0.0038188 deg M 233.3898733523203 0.0045551 deg tp 2490637.210109538119 (2107-Jan-12.71010954) 0.74391 TDB period 89955.01340210091 246.28 2.3667 0.00648 d yr n .004002000404255314 1.0529e-07 deg/d Q 46.48921573473611 0.00081543 au   Orbit Determination Parameters    # obs. used (total)      405      data-arc span      9008 days (24.66 yr)      first obs. used      1996-03-19      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .44073      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 23:47:22   Additional Information  Earth MOID = 31.0774 au   Jupiter MOID = 26.8232 au   T_jup = 5.384  [ 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 3.6   n/a MPO440113   rotation period rot_per 13.42 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.] 208996 (2003 AZ84)          Discovered 2003-Jan-13 by Trujillo, C. A., Brown, M. E. at Palomar Reference: 20090311/Numbers.arc Last Updated: 2009-03-12 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 17:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin