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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 519 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3647443715989342 2.4794e-08  
a 1.70952097395044 1.9609e-09 au
q 1.085982820571688 4.2307e-08 au
i 26.86959039869459 5.0889e-06 deg
node 246.5742662973466 7.1358e-06 deg
peri 115.45306662515 9.7212e-06 deg
M 233.2322647122028 7.3272e-06 deg
tp 2458887.985740361507
(2020-Feb-08.48574036)
1.6977e-05 TDB
period 816.4133112828844
2.24
1.4047e-06
3.846e-09
d
yr
n .4409531238954301 7.587e-10 deg/d
Q 2.333059127329191 2.6762e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3447  
   data-arc span      25243 days (69.11 yr)  
   first obs. used      1950-06-19  
   last obs. used      2019-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32665  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-04 05:59:43  

Additional Information
 Earth MOID = .245309 au 
 Jupiter MOID = 3.40792 au 
 T_jup = 3.996 
[ 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 13.92   n/a PDS3 (MPC 17264)  
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. 2019-January); 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 Macias, A.; 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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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