+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1323 Tugela (1934 LD) Classification: Outer Main-belt Asteroid          SPK-ID: 2001323 [ 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 44 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1481276626835592 3.7586e-08   a 3.228837960219198 1.4601e-08 au q 2.750557739987977 1.2063e-07 au i 18.78503923218908 4.8854e-06 deg node 45.23438577354511 1.0531e-05 deg peri 136.4256465644882 1.8445e-05 deg M 44.02794449953759 1.3708e-05 deg tp 2458741.324639029033 (2019-Sep-14.82463903) 8.0969e-05 TDB period 2119.179784796177 5.80 1.4374e-05 3.935e-08 d yr n .1698770451581222 1.1523e-09 deg/d Q 3.707118180450419 1.6764e-08 au   Orbit Determination Parameters    # obs. used (total)      2810      data-arc span      40878 days (111.92 yr)      first obs. used      1908-10-27      last obs. used      2020-09-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .35722      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:20:11   Additional Information  Earth MOID = 1.77977 au   Jupiter MOID = 1.35883 au   T_jup = 3.087  [ 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 9.9   n/a MPO302067   diameter diameter 78.295 km 0.511 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 19.50 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2007) Minor Planet Bull. 34, 72-77.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] geometric albedo albedo 0.018   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1323 Tugela (1934 LD)          Discovered 1934-May-19 by Jackson, C. at Johannesburg (UO) Prediscovery observations exist as early as May 8. The May 19 discovery date quoted by some authorities in in error. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1934 LD = 1974 HR3 = 1974 KM = 1974 KO = A908 UB = A911 HC  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 09:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin