+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   212977 Birute (2009 CT3) Classification: Main-belt Asteroid          SPK-ID: 2212977 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .142884203125355 4.0794e-08   a 2.267291010991125 1.8678e-08 au q 1.943330941632378 8.9293e-08 au i 5.980675138756679 7.272e-06 deg node .3608292719846595 4.301e-05 deg peri 259.4175963084522 5.0876e-05 deg M 2.289699853431074 3.0529e-05 deg tp 2458992.568864279512 (2020-May-23.06886428) 0.00010571 TDB period 1246.979535373248 3.41 1.5409e-05 4.219e-08 d yr n .2886976007126244 3.5675e-09 deg/d Q 2.591251080349872 2.1347e-08 au   Orbit Determination Parameters    # obs. used (total)      258      data-arc span      6681 days (18.29 yr)      first obs. used      2000-09-24      last obs. used      2019-01-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61499      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 11:48:45   Additional Information  Earth MOID = .939187 au   Jupiter MOID = 2.4871 au   T_jup = 3.595  [ 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 16.8   n/a MPO422828   diameter diameter 1.483 km 0.328 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.168   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   212977 Birut\.e           Discovered 2009 Feb. 2 by K. Cernis at Moletai. Birut\.e (d. 1382) was the second wife of Kestutis, Grand Duke of Lithuania, and mother of Vytautas the Great. There is very little known about Birut\.e's life, but after her death a strong cult devoted to her developed among Lithuanians. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2018-05-29 Last Updated: 2018-09-17 [ show close-approach data ] Alternate Designations  2009 CT3 = 2000 SP201 = 2006 BH98  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-25 19:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin