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1980 Tezcatlipoca (1950 LA)
Classification: Amor [NEO]          SPK-ID: 2001980
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 580 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3647529679641138 1.1785e-08  
a 1.709456343748065 1.326e-09 au
q 1.085927068760876 2.0104e-08 au
i 26.86749640044108 1.2996e-06 deg
node 246.5618717509412 1.7073e-06 deg
peri 115.4579743888572 3.0879e-06 deg
M 224.1962237279083 1.9308e-06 deg
tp 2459704.460342456918
(2022-May-04.96034246)
4.6147e-06 TDB
period 816.3670137004431
2.24
9.4987e-07
2.601e-09
d
yr
n .4409781311081955 5.1309e-10 deg/d
Q 2.332985618735254 1.8097e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3733  
   data-arc span      25952 days (71.05 yr)  
   first obs. used      1950-06-19  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .32636  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-10 05:56:46  

Additional Information
 Earth MOID = .245211 au 
 Jupiter MOID = 3.41262 au 
 T_jup = 3.996 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456667.5 (2014-Jan-10.0) TDB
Reference: JPL 580 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3648172137005826 1.1772e-08  
q 1.085957757752854 2.0081e-08 au
tp 2456438.788076965270
(2013-May-26.28807697)
3.4166e-06 TDB
node 246.6241516741943 1.7077e-06 deg
peri 115.4212113482511 3.0869e-06 deg
i 26.86064723938096 1.2998e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3733  
   data-arc span      25952 days (71.05 yr)  
   first obs. used      1950-06-19  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .32636  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-10 05:56:46  

Additional Information
 Jupiter MOID = 3.41262 au 
 T_jup = 3.996 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.38583672091464E-16 -2.36193616272283E-16 -2.10522673013821E-14 2.18573253427653E-15 -2.095687313941942E-14 -4.367094066739366E-15
q -2.36193616272283E-16 4.032589490036048E-16 3.544963479066122E-14 -3.742354548325756E-15 3.590193397686388E-14 7.344341343548312E-15
tp -2.10522673013821E-14 3.544963479066122E-14 1.167321872715705E-11 -1.157379864887228E-12 8.414927892136257E-12 -1.857397439642523E-12
node 2.18573253427653E-15 -3.742354548325756E-15 -1.157379864887228E-12 2.916284938889853E-12 -3.462160567079766E-12 4.202025255215236E-13
peri -2.095687313941942E-14 3.590193397686388E-14 8.414927892136257E-12 -3.462160567079766E-12 9.528719070397623E-12 -1.116449413918528E-12
i -4.367094066739366E-15 7.344341343548312E-15 -1.857397439642523E-12 4.202025255215236E-13 -1.116449413918528E-12 1.689589891480574E-12

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 13.80   n/a MPO614063  
diameter diameter 4.3 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
rotation period rot_per 7.24612 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Kaasalainen, M.; et al. (2004) Icarus 167, 178-196.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Delbo, M.; Durech, J.; Ali-Lagoa, V. (2015) Icarus 256, 101-116.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 335-344.]
[Aznar, A.M.; Predatu, M.; Vaduvescu, O.; Oey, J. (2018) arXiv:1801.09420. Romanian J. Phys. 62, 904 (2017).]
geometric albedo albedo 0.25   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
B-V BV 0.955   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=53.35, mean=53.35, max.=53.36) deg.
U-B UB 0.455   0.060 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=53.35, mean=53.35, max.=53.36) deg.
Tholen spectral type spec_T SU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Sl   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)

1980 Tezcatlipoca (1950 LA)          Discovered 1950-Jun-19 by Wilson, A. G. at Palomar
and A. A. E. Wallenquist
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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