+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   7102 Neilbone (1936 NB) Classification: Main-belt Asteroid          SPK-ID: 2007102 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2468066320016514 4.1476e-08   a 3.09401525592492 2.1735e-08 au q 2.330391771248363 1.2771e-07 au i 18.59320346441965 5.166e-06 deg node 298.0632522449058 1.3914e-05 deg peri 345.6611511504598 1.673e-05 deg M 169.8829905180718 1.1316e-05 deg tp 2458062.442414407005 (2017-Nov-04.94241441) 5.7754e-05 TDB period 1987.843101793963 5.44 2.0946e-05 5.735e-08 d yr n .1811008120686748 1.9083e-09 deg/d Q 3.857638740601477 2.7099e-08 au   Orbit Determination Parameters    # obs. used (total)      1891      data-arc span      30607 days (83.80 yr)      first obs. used      1936-07-12      last obs. used      2020-04-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40198      source      ORB      producer      Otto Matic      solution date      2020-May-20 02:42:22   Additional Information  Earth MOID = 1.31812 au   Jupiter MOID = 1.38508 au   T_jup = 3.098  [ 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 12.1   n/a MPO358700   diameter diameter 21.426 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.067   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   7102 Neilbone           Discovered 1936 July 12 by C. Jackson at Johannesburg. Neil Bone (b. 1959), a British observer and author of several books, founded the Aurora Section of what is now the Society for Popular Astronomy in 1981 and became director of the British Astronomical Association's Meteor Section in 1992. He also compiles the "Society News" notes for Astronomy Now. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20090209/MPCPages.arc Last Updated: 2009-02-11 [ show close-approach data ] Alternate Designations  1936 NB = 1985 OB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-15 20:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin