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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1482363466106184 1.5899e-08  
a 3.23076528536569 1.2519e-08 au
q 2.751848442706668 5.0168e-08 au
i 18.77790487795975 4.2609e-07 deg
node 45.21707656013121 1.4923e-06 deg
peri 136.664001962463 4.3184e-06 deg
M 77.77500440890351 5.1675e-06 deg
tp 2458742.258854322042
(2019-Sep-15.75885432)
2.8791e-05 TDB
period 2121.077506813741
5.81
1.2328e-05
3.375e-08
d
yr
n .1697250566485843 9.8648e-10 deg/d
Q 3.709682128024712 1.4374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2877  
   data-arc span      41055 days (112.40 yr)  
   first obs. used      1908-10-27  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35922  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:23:12  

Additional Information
 Earth MOID = 1.78003 au 
 Jupiter MOID = 1.35422 au 
 T_jup = 3.086 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456801.5 (2014-May-24.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483885369700982 1.5927e-08  
q 2.749514735013488 5.0248e-08 au
tp 2456617.239162292228
(2013-Nov-20.73916229)
2.3703e-05 TDB
node 45.26937234605897 1.4927e-06 deg
peri 135.7541399318094 4.3346e-06 deg
i 18.7872524001801 4.2648e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2877  
   data-arc span      41055 days (112.40 yr)  
   first obs. used      1908-10-27  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35922  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:23:12  

Additional Information
 Jupiter MOID = 1.35422 au 
 T_jup = 3.086 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.536715505821599E-16 -7.820448869245038E-16 1.435494180008879E-13 -9.805669169698244E-16 1.830100938330036E-15 1.277492051104757E-16
q -7.820448869245038E-16 2.524815130200048E-15 -4.108493884038776E-13 2.610854573511744E-15 4.779829230310444E-15 -6.155543621968213E-16
tp 1.435494180008879E-13 -4.108493884038776E-13 5.618294627465803E-10 -1.445260266584535E-11 9.309094664575685E-11 -4.453053455750033E-14
node -9.805669169698244E-16 2.610854573511744E-15 -1.445260266584535E-11 2.228033271104381E-12 -3.857532466856261E-12 4.679129820093016E-13
peri 1.830100938330036E-15 4.779829230310444E-15 9.309094664575685E-11 -3.857532466856261E-12 1.878911970114501E-11 -3.252092158255308E-13
i 1.277492051104757E-16 -6.155543621968213E-16 -4.453053455750033E-14 4.679129820093016E-13 -3.252092158255308E-13 1.818887639339561E-13

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 10.00   n/a E2021B10  
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.DBLast 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 ]
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