+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 49 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1829722908313955 1.7951e-08   a 3.119247484626162 1.1272e-08 au q 2.548511626694045 5.626e-08 au i 2.280490049259024 1.0612e-06 deg node 88.91303842714423 2.4491e-05 deg peri 274.3407283513324 2.7052e-05 deg M 163.2752913152536 7.9148e-06 deg tp 2458483.877558942859 (2018-Dec-31.37755894) 4.1978e-05 TDB period 2012.209417199658 5.51 1.0907e-05 2.986e-08 d yr n .1789078198933206 9.6975e-10 deg/d Q 3.689983342558278 1.3334e-08 au   Orbit Determination Parameters    # obs. used (total)      3414      data-arc span      25143 days (68.84 yr)      first obs. used      1952-08-19      last obs. used      2021-06-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43451      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 12:23:21   Additional Information  Earth MOID = 1.54667 au   Jupiter MOID = 1.77032 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 11.86   n/a MPCxxxxx   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-Jul-28 05:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin