+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   18898 (2000 JX) Classification: Main-belt Asteroid          SPK-ID: 2018898 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3067085118627234 4.0631e-08   a 3.18107223236036 1.7369e-08 au q 2.205410301845283 1.2909e-07 au i 26.50301830891868 3.8572e-06 deg node 111.151785881095 1.0867e-05 deg peri 288.4882745016515 1.3072e-05 deg M 42.25945296622014 5.5392e-06 deg tp 2459153.234739945812 (2020-Oct-30.73473995) 3.2245e-05 TDB period 2072.329087873206 5.67 1.6973e-05 4.647e-08 d yr n .1737175828427239 1.4228e-09 deg/d Q 4.156734162875438 2.2697e-08 au   Orbit Determination Parameters    # obs. used (total)      1877      data-arc span      25922 days (70.97 yr)      first obs. used      1950-04-20      last obs. used      2021-04-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45862      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 18:05:06   Additional Information  Earth MOID = 1.35641 au   Jupiter MOID = 1.79597 au   T_jup = 2.968  [ 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 12.88   n/a MPCxxxxx   diameter diameter 13.601 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.093   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   18898 (2000 JX)          Discovered 2000-May-01 by LINEAR at Socorro Reference: 20001111/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2000 JX = 1991 OH = 1993 BB15 = 1999 CN44  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Aug-01 23:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin