+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1279 Uganda (1933 LB) Classification: Main-belt Asteroid          SPK-ID: 2001279 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .211046345269541 3.4088e-08   a 2.369261340919384 7.1029e-09 au q 1.869237393929936 8.2467e-08 au i 5.724527158405135 4.4774e-06 deg node 335.4064155905778 3.4815e-05 deg peri 297.7930783937881 3.7098e-05 deg M 292.9444316028599 1.6036e-05 deg tp 2459248.613403643271 (2021-Feb-03.11340364) 5.9866e-05 TDB period 1332.041878797754 3.65 5.9901e-06 1.64e-08 d yr n .2702617730944925 1.2153e-09 deg/d Q 2.869285287908832 8.602e-09 au   Orbit Determination Parameters    # obs. used (total)      2912      data-arc span      31823 days (87.13 yr)      first obs. used      1933-06-15      last obs. used      2020-07-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42329      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 22:31:05   Additional Information  Earth MOID = .86139 au   Jupiter MOID = 2.28246 au   T_jup = 3.509  [ 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 12.2   n/a MPO502165   diameter diameter 6.804 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 23.2 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong. Published Reference List: [Binzel, R.P. (1987) Icarus 72, 135-208.] geometric albedo albedo 0.321   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.760   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.71 deg. 1279 Uganda (1933 LB)          Discovered 1933-Jun-15 by Jackson, C. at Johannesburg (UO) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 06:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin