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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1481276597889684 3.7835e-08  
a 3.228837961009949 1.4649e-08 au
q 2.750557750007761 1.2156e-07 au
i 18.78503937549784 4.9048e-06 deg
node 45.2343853730877 1.0589e-05 deg
peri 136.4256465985871 1.8497e-05 deg
M 44.0279444680481 1.371e-05 deg
tp 2458741.324639119190
(2019-Sep-14.82463912)		 8.098e-05 TDB
period 2119.179785574666
5.80		 1.4422e-05
3.949e-08		 d
yr
n .1698770450957172 1.1561e-09 deg/d
Q 3.707118172012137 1.6819e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2747  
   data-arc span      40826 days (111.78 yr)  
   first obs. used      1908-10-27  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35927  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:32:30  

Additional Information
 Earth MOID = 1.77977 au 
 Jupiter MOID = 1.35883 au 
 T_jup = 3.087 
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Orbital Elements at Epoch 2456649.5 (2013-Dec-23.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1482773433815808 3.7651e-08  
q 2.749422853018531 1.2091e-07 au
tp 2456617.051477915314
(2013-Nov-20.55147792)		 8.472e-05 TDB
node 45.26818613170249 1.0587e-05 deg
peri 135.7124716008689 1.8542e-05 deg
i 18.78831617511339 4.9055e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2747  
   data-arc span      40826 days (111.78 yr)  
   first obs. used      1908-10-27  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35927  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:32:30  

Additional Information
 Jupiter MOID = 1.35883 au 
 T_jup = 3.087 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.417609018237195E-15 -4.528444635306379E-15 1.08545101908286E-12 -3.957768607032632E-15 2.100698581025004E-13 -7.980729432092445E-16
q -4.528444635306379E-15 1.462038277351493E-14 -3.834047427079519E-12 6.408417545802653E-15 -7.341936839017493E-13 8.411579007098527E-17
tp 1.08545101908286E-12 -3.834047427079519E-12 7.177467747459714E-9 -1.55673452788219E-11 1.298839447330498E-9 -1.20691382496022E-12
node -3.957768607032632E-15 6.408417545802653E-15 -1.55673452788219E-11 1.120839418422082E-10 -1.094992825970541E-10 -2.961984630995189E-12
peri 2.100698581025004E-13 -7.341936839017493E-13 1.298839447330498E-9 -1.094992825970541E-10 3.437888580031619E-10 2.173688664948795E-12
i -7.980729432092445E-16 8.411579007098527E-17 -1.20691382496022E-12 -2.961984630995189E-12 2.173688664948795E-12 2.406420355451256E-11

[ 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. 2019-August); 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.DBLast Updated: 2003-08-29

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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 ]
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