+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15779 Scottroberts (1993 OA3) Classification: Main-belt Asteroid          SPK-ID: 2015779 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2424202043534286 2.0733e-08   a 2.32430095479457 9.0774e-09 au q 1.760843442354401 4.7383e-08 au i 23.21689223163143 1.1678e-06 deg node 282.9522205075893 2.0444e-06 deg peri 59.88152696925501 4.4163e-06 deg M 254.1664430701539 4.7901e-06 deg tp 2459581.002802207646 (2022-Jan-01.50280221) 1.9078e-05 TDB period 1294.306010007329 3.54 7.5823e-06 2.076e-08 d yr n .2781413338241098 1.6294e-09 deg/d Q 2.887758467234738 1.1278e-08 au   Orbit Determination Parameters    # obs. used (total)      1763      data-arc span      24292 days (66.51 yr)      first obs. used      1954-08-09      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4433      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:08:54   Additional Information  Earth MOID = .835504 au   Jupiter MOID = 2.63939 au   T_jup = 3.430  [ 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 13.47   n/a E2021B10   diameter diameter 5.703 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.389   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15779 Scottroberts           Discovered 1993 July 26 by C. S. Shoemaker and D. H. Levy at Palomar. Scott Roberts (b. 1959) for many years has encouraged amateur astronomers to pursue their love of the night sky, spending much time teaching people how to use and enjoy their telescopes. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20001111/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  1993 OA3 = 1984 AE  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-16 09:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin