+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101451 (1998 VW56) Classification: Main-belt Asteroid          SPK-ID: 2101451 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1798584983274697 4.747e-08   a 2.354960169883914 8.5156e-09 au q 1.93140057010759 1.0898e-07 au i 5.578009926599502 4.1741e-06 deg node 297.786984092434 4.5239e-05 deg peri 64.71986047430934 4.6921e-05 deg M 69.52275574654149 1.2378e-05 deg tp 2458945.583319947989 (2020-Apr-06.08331995) 4.4744e-05 TDB period 1319.999528690851 3.61 7.1597e-06 1.96e-08 d yr n .2727273701052309 1.4793e-09 deg/d Q 2.778519769660238 1.0047e-08 au   Orbit Determination Parameters    # obs. used (total)      994      data-arc span      8133 days (22.27 yr)      first obs. used      1998-11-14      last obs. used      2021-02-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50825      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:36:51   Additional Information  Earth MOID = .934613 au   Jupiter MOID = 2.70247 au   T_jup = 3.527  [ 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 15.44   n/a E2021B55   diameter diameter 4.847 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.057   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101451 (1998 VW56)          Discovered 1998-Nov-14 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1998 VW56 = 2002 YP26  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 15:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin