+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   47410 (1999 XE135) Classification: Main-belt Asteroid          SPK-ID: 2047410 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2358643122405057 3.1749e-08   a 2.213789559214277 6.9587e-09 au q 1.691635607384989 7.2069e-08 au i 6.671688500527393 3.6121e-06 deg node 139.2374292231241 2.8318e-05 deg peri 200.4719127644959 2.918e-05 deg M 152.2066024060958 8.4178e-06 deg tp 2458491.832582388339 (2019-Jan-08.33258239) 2.69e-05 TDB period 1203.103330902971 3.29 5.6726e-06 1.553e-08 d yr n .299226168486964 1.4108e-09 deg/d Q 2.735943511043565 8.6e-09 au   Orbit Determination Parameters    # obs. used (total)      1299      data-arc span      10663 days (29.19 yr)      first obs. used      1991-03-07      last obs. used      2020-05-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53451      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 23:42:24   Additional Information  Earth MOID = .684368 au   Jupiter MOID = 2.66012 au   T_jup = 3.610  [ 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 15.2   n/a MPO439416   diameter diameter 1.771 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   geometric albedo albedo 0.468   0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   47410 (1999 XE135)          Discovered 1999-Dec-06 by LINEAR at Socorro Reference: 20020921/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 XE135 = 1998 HH113  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 20:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin