+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58648 (1997 WZ36) Classification: Main-belt Asteroid          SPK-ID: 2058648 [ 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 .1763888976671538 3.7687e-08   a 2.379109859246863 7.2658e-09 au q 1.959461293745252 8.839e-08 au i 2.772282958214388 4.0289e-06 deg node 177.2380499349298 7.2953e-05 deg peri 204.2552458939762 7.3741e-05 deg M 131.2369776699967 9.4744e-06 deg tp 2458711.877016169315 (2019-Aug-16.37701617) 3.5235e-05 TDB period 1340.356028476734 3.67 6.1401e-06 1.681e-08 d yr n .2685853551978478 1.2304e-09 deg/d Q 2.798758424748474 8.5474e-09 au   Orbit Determination Parameters    # obs. used (total)      1077      data-arc span      10955 days (29.99 yr)      first obs. used      1991-01-16      last obs. used      2021-01-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50732      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 05:44:03   Additional Information  Earth MOID = .961281 au   Jupiter MOID = 2.65901 au   T_jup = 3.517  [ 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 15.81   n/a E2021B10   diameter diameter 4.184 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.058   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   58648 (1997 WZ36)          Discovered 1997-Nov-29 by LINEAR at Socorro Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1997 WZ36 = 1993 SR4 = 1997 XN13  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 05:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin