+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101463 (1998 WM11) Classification: Main-belt Asteroid          SPK-ID: 2101463 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1031172834647486 3.0616e-08   a 2.3522024086671 7.6862e-09 au q 2.10964968612611 7.2209e-08 au i 3.839334509455202 4.331e-06 deg node 118.4807941042264 5.2956e-05 deg peri 285.3513780508568 5.7667e-05 deg M 53.0308981239393 2.2622e-05 deg tp 2459006.394901075511 (2020-Jun-05.89490108) 8.2552e-05 TDB period 1317.68154198527 3.61 6.4586e-06 1.768e-08 d yr n .2732071358134152 1.3391e-09 deg/d Q 2.59475513120809 8.4788e-09 au   Orbit Determination Parameters    # obs. used (total)      920      data-arc span      8158 days (22.34 yr)      first obs. used      1998-10-20      last obs. used      2021-02-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51663      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:36:55   Additional Information  Earth MOID = 1.12148 au   Jupiter MOID = 2.7299 au   T_jup = 3.547  [ 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 15.8   n/a MPO439695   diameter diameter 1.899 km 0.436 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.257   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101463 (1998 WM11)          Discovered 1998-Nov-21 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1998 WM11 = 2001 QZ40  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 06:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin