+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11003 Andronov (1979 TT2) Classification: Main-belt Asteroid          SPK-ID: 2011003 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2647038261669528 4.9282e-08   a 2.573064975438033 1.1333e-08 au q 1.891964831463409 1.3276e-07 au i 3.714849508880409 3.3297e-06 deg node 42.09118729244709 5.0798e-05 deg peri 314.6165520031914 5.1131e-05 deg M 323.2041702239922 4.3977e-06 deg tp 2459154.588652397577 (2020-Nov-01.08865240) 1.8447e-05 TDB period 1507.559829491807 4.13 9.9599e-06 2.727e-08 d yr n .2387964928206893 1.5776e-09 deg/d Q 3.254165119412657 1.4333e-08 au   Orbit Determination Parameters    # obs. used (total)      2268      data-arc span      15530 days (42.52 yr)      first obs. used      1978-05-09      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46377      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:44:22   Additional Information  Earth MOID = .890248 au   Jupiter MOID = 2.1973 au   T_jup = 3.376  [ 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 13.8   n/a MPO439163   diameter diameter 4.199 km 0.495 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 4.5223 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Linville, D.; Jiang, H.; Michalik, D.; Wilson, S.; Ditteon, R. (2017) Minor Planet Bull. 44, 173-176.] geometric albedo albedo 0.399   0.230 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11003 Andronov           Discovered 1979 Oct. 14 by N. S. Chernykh at the Crimean Astrophysical Observatory. Ivan Leonidovich Andronov (b. 1960), professor at Odessa National University, is a prominent Ukrainian stellar astrophysicist known for his research on double and symbiotic stars. He also lectures on various aspects of astrophysics and mathematics. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040306/MPCPages.arc Last Updated: 2004-03-08 Alternate Designations  1979 TT2 = 1978 JO3 = 1979 WQ1 = 1987 MF  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 06:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin