+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1445 Konkolya (1938 AF) Classification: Main-belt Asteroid          SPK-ID: 2001445 [ 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 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1826341821525502 3.3309e-08   a 3.119651698244123 1.275e-08 au q 2.549896661734493 1.0606e-07 au i 2.280661650293129 3.582e-06 deg node 88.91989260121927 9.6807e-05 deg peri 274.3114573293467 9.7258e-05 deg M 92.49419592050536 9.8382e-06 deg tp 2458483.405914271574 (2018-Dec-30.90591427) 5.4555e-05 TDB period 2012.600563847532 5.51 1.2339e-05 3.378e-08 d yr n .1788730493604654 1.0966e-09 deg/d Q 3.689406734753752 1.5079e-08 au   Orbit Determination Parameters    # obs. used (total)      2987      data-arc span      24926 days (68.24 yr)      first obs. used      1952-08-19      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45253      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:00:37   Additional Information  Earth MOID = 1.54887 au   Jupiter MOID = 1.76932 au   T_jup = 3.189  [ 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 11.8   n/a MPO502167   diameter diameter 20.332 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.078   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   B-V BV 0.658   0.026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=19.04 deg. U-B UB 0.332   0.042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=19.04 deg. Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo 1445 Konkolya (1938 AF)          Discovered 1938-Jan-06 by Kulin, G. at Budapest Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1938 AF = 1978 GC4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 19:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin