+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14476 (1993 XW2) Classification: Main-belt Asteroid          SPK-ID: 2014476 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .18839261473118 2.772e-08   a 2.69069898196725 9.7757e-09 au q 2.183791165299915 7.3177e-08 au i 13.6653767746583 3.339e-06 deg node 129.0209398289317 1.3098e-05 deg peri 227.0720914302258 1.574e-05 deg M 125.818893497605 8.6244e-06 deg tp 2458637.070659274365 (2019-Jun-02.57065927) 3.801e-05 TDB period 1612.115295427309 4.41 8.7856e-06 2.405e-08 d yr n .223309090250011 1.217e-09 deg/d Q 3.197606798634584 1.1617e-08 au   Orbit Determination Parameters    # obs. used (total)      2326      data-arc span      14136 days (38.70 yr)      first obs. used      1982-05-13      last obs. used      2021-01-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4615      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:18:21   Additional Information  Earth MOID = 1.19919 au   Jupiter MOID = 2.27892 au   T_jup = 3.306  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.0   n/a MPO502279   diameter diameter 6.292 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   geometric albedo albedo 0.325   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   14476 (1993 XW2)          Discovered 1993-Dec-14 by PCAS at Palomar Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1993 XW2 = 1982 JG = 1999 BT14 = 1999 CJ97  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-27 20:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin