+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22013 (1999 XO89) Classification: Main-belt Asteroid          SPK-ID: 2022013 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1185521720973297 1.341e-08   a 2.787068973201144 1.1929e-08 au q 2.456655892643074 3.8661e-08 au i 8.151975776746717 5.9852e-07 deg node 264.8525323045306 6.644e-06 deg peri 8.954488993143768 1.2356e-05 deg M 15.92897049765928 8.799e-06 deg tp 2459125.302187205055 (2020-Oct-02.80218720) 4.1542e-05 TDB period 1699.49543256159 4.65 1.0911e-05 2.987e-08 d yr n .2118275772341351 1.36e-09 deg/d Q 3.117482053759214 1.3343e-08 au   Orbit Determination Parameters    # obs. used (total)      1971      data-arc span      9440 days (25.85 yr)      first obs. used      1994-11-27      last obs. used      2020-10-01      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47069      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:57:40   Additional Information  Earth MOID = 1.43892 au   Jupiter MOID = 1.98611 au   T_jup = 3.306  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.59   n/a E2021B10   diameter diameter 5.766 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 6.5 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: [Warner, B.D. (2013) Minor Planet Bull. 40, 71-80.] geometric albedo albedo 0.254   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22013 (1999 XO89)          Discovered 1999-Dec-07 by LINEAR at Socorro Reference: 20010208/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 XO89 = 1994 WM12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 23:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin