+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11016 Borisov (1982 SG12) Classification: Main-belt Asteroid          SPK-ID: 2011016 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1163307561782147 2.1002e-08   a 2.307077619653962 7.1821e-09 au q 2.038693535597782 4.8388e-08 au i 6.434732164860093 1.7746e-06 deg node 183.9788227247461 1.4064e-05 deg peri 236.3107604643606 6.8911e-06 deg M 278.8529856226533 1.1103e-05 deg tp 2459489.010604697094 (2021-Oct-01.51060470) 3.9973e-05 TDB period 1279.946261583579 3.50 5.9769e-06 1.636e-08 d yr n .2812618082532619 1.3134e-09 deg/d Q 2.575461703710144 8.0176e-09 au   Orbit Determination Parameters    # obs. used (total)      1969      data-arc span      15975 days (43.74 yr)      first obs. used      1977-03-12      last obs. used      2020-12-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46172      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:28:29   Additional Information  Earth MOID = 1.05784 au   Jupiter MOID = 2.72536 au   T_jup = 3.570  [ 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 14.24   n/a E2021B10   diameter diameter 2.966 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.504   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11016 Borisov           Discovered 1982 Sept. 16 by L. I. Chernykh at the Crimean Astrophysical Observatory. Vladimir Aleksandrovich Borisov (1809-1862), regional ethnographer in the town of Shuya and a member of Russian Geography Society, was the author of a book about Shuya and its environs. He had a vast collection of ancient handwritten rolls and books, old printed books and coins that are now at various museums. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010902/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1982 SG12 = 1977 EJ6 = 1982 ST12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 20:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin