+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78185 (2002 NE38) Classification: Main-belt Asteroid          SPK-ID: 2078185 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09705059368702171 5.8186e-08   a 3.008501926340436 2.3274e-08 au q 2.716525028280548 1.7611e-07 au i 10.63407627184933 7.5193e-06 deg node 177.5997588775362 2.4951e-05 deg peri 157.244378565411 3.9498e-05 deg M 136.6632987042075 3.002e-05 deg tp 2458276.942138969054 (2018-Jun-07.44213897) 0.00015873 TDB period 1906.004263331315 5.22 2.2117e-05 6.055e-08 d yr n .1888768073219269 2.1917e-09 deg/d Q 3.300478824400324 2.5532e-08 au   Orbit Determination Parameters    # obs. used (total)      707      data-arc span      8201 days (22.45 yr)      first obs. used      1997-09-06      last obs. used      2020-02-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56479      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:27:50   Additional Information  Earth MOID = 1.71102 au   Jupiter MOID = 2.13213 au   T_jup = 3.217  [ 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 14.7   n/a MPO351394   diameter diameter 4.274 km 0.916 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.116   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   78185 (2002 NE38)          Discovered 2002-Jul-09 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2070-Apr-07 08:05 00:03 Juno 0.0246502210985465 0.0246470146875013 0.0246534334492849 4.14038991651072 4.14038979730862 2477208.836914080 3.2210739075822 712.353912322052 79.28768605567 -78.692675451391 45575.089247279 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:27:52 2020-Nov-12 21:27 Alternate Designations  2002 NE38 = 1997 RM11  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 22:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin