+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100438 (1996 PC3) Classification: Mars-crossing Asteroid          SPK-ID: 2100438 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3636774011747269 6.412e-08   a 2.594049557883902 1.7648e-08 au q 1.650652356154236 1.7321e-07 au i 25.94082862801485 1.0422e-05 deg node 329.4222348238773 1.6894e-05 deg peri 98.52165131582994 2.3645e-05 deg M 196.2937746542513 1.4003e-05 deg tp 2459694.450549761077 (2022-Apr-24.95054976) 6.3049e-05 TDB period 1526.039693275937 4.18 1.5573e-05 4.264e-08 d yr n .2359047419187315 2.4074e-09 deg/d Q 3.537446759613569 2.4066e-08 au   Orbit Determination Parameters    # obs. used (total)      574      data-arc span      12403 days (33.96 yr)      first obs. used      1985-02-20      last obs. used      2019-02-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50126      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 01:06:04   Additional Information  Earth MOID = .856154 au   Jupiter MOID = 2.33452 au   T_jup = 3.189  [ 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 15.3   n/a MPO436467   diameter diameter 5.726 km 1.678 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   geometric albedo albedo 0.048   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   100438 (1996 PC3)          Discovered 1996-Aug-14 by NEAT at Haleakala Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1996 PC3 = 1985 DQ4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-21 01:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin