+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   6646 Churanta (1991 CA3) Classification: Inner Main-belt Asteroid          SPK-ID: 2006646 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1006297377251466 1.428e-08   a 1.924839141514035 4.3129e-09 au q 1.731143083540382 2.928e-08 au i 17.58822554261448 1.1743e-06 deg node 340.7326377456289 1.2223e-06 deg peri 105.9598339055839 6.3275e-06 deg M 108.4100433261526 6.5277e-06 deg tp 2458906.764047507735 (2020-Feb-27.26404751) 1.7344e-05 TDB period 975.4164803631795 2.67 3.2784e-06 8.976e-09 d yr n .3690731161995133 1.2405e-09 deg/d Q 2.118535199487689 4.7469e-09 au   Orbit Determination Parameters    # obs. used (total)      1801      data-arc span      13901 days (38.06 yr)      first obs. used      1983-01-12      last obs. used      2021-02-02      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .40747      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 18:57:35   Additional Information  Earth MOID = .815395 au   Jupiter MOID = 3.01806 au   T_jup = 3.857  [ 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 14.54   n/a E2021B10   diameter diameter 1.920 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 5.8711 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2007) Minor Planet Bull. 34, 72-77.] [Warner, B.D (2012) Minor Planet Bull. 39, 69-80.] [Warner, B.D. (2015) Minor Planet Bull. 42, 167-172.] [Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 125-133.] geometric albedo albedo 1.000   0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   6646 Churanta           Discovered 1991 Feb. 14 by E. F. Helin at Palomar. Antonina Mikhailovna Churyumova (b. 1907) is the mother of astronomer Klim Churyumov. A poet who has participated actively in public issues in the Ukraine, she has seven other children. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010509/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1991 CA3 = 1983 AC2 = 1983 EU3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 15:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin