+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1828839336316505 1.0442e-05   a 39.27453275083628 0.00062753 au q 32.09185170981825 0.00089167 au i 13.58548123113422 3.6725e-05 deg node 252.1379508159402 0.00018674 deg peri 16.1892768286056 0.0033372 deg M 233.8392989439155 0.0039679 deg tp 2490706.013332517072 (2107-Mar-22.51333252) 0.69509 TDB period 89901.09205769307 246.14 2.1547 0.005899 d yr n .004004400744864966 9.5973e-08 deg/d Q 46.45721379185431 0.00074229 au   Orbit Determination Parameters    # obs. used (total)      431      data-arc span      9127 days (24.99 yr)      first obs. used      1996-03-19      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      2      norm. resid. RMS      .43668      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 23:24:34   Additional Information  Earth MOID = 31.0763 au   Jupiter MOID = 26.8245 au   T_jup = 5.383  [ 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 3.82   n/a MPCxxxxx   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-May-10 06:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin