+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11446 Betankur (1978 TO8) Classification: Main-belt Asteroid          SPK-ID: 2011446 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1930023804260592 4.072e-08   a 3.066754553906763 1.6507e-08 au q 2.4748636248203 1.3042e-07 au i .8805360473331437 4.017e-06 deg node 213.9238260394334 0.00026266 deg peri 162.0566554523856 0.00026284 deg M 327.4379805633054 1.2029e-05 deg tp 2459377.929482378156 (2021-Jun-12.42948238) 6.6452e-05 TDB period 1961.629369465789 5.37 1.5838e-05 4.336e-08 d yr n .1835209064483159 1.4818e-09 deg/d Q 3.658645482993225 1.9693e-08 au   Orbit Determination Parameters    # obs. used (total)      2088      data-arc span      15415 days (42.20 yr)      first obs. used      1978-10-09      last obs. used      2020-12-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51498      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:46:32   Additional Information  Earth MOID = 1.47486 au   Jupiter MOID = 1.80886 au   T_jup = 3.203  [ 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 13.12   n/a E2021B10   diameter diameter 11.030 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.091   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11446 Betankur           Discovered 1978 Oct. 9 by L. V. Zhuravleva at the Crimean Astrophysical Observatory. Avgustin Avgustinovich Betankur (1758-1824) was a civil engineer who built a gun foundry in Kazan, many bridges and several remarkable buildings, in particular a riding-house in Moscow. In 1810 he founded and headed the institute of communications engineers in St. Petersburg. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030614/MPCPages.arc Last Updated: 2005-04-26 [ show close-approach data ] Alternate Designations  1978 TO8 = 1983 RU  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 17:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin