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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 520 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3645634487547003 2.4773e-08  
a 1.709577917567304 1.9578e-09 au
q 1.086328296024089 4.2268e-08 au
i 26.86722511059119 5.0861e-06 deg
node 246.573370426919 7.1352e-06 deg
peri 115.4449626614019 9.7236e-06 deg
M 49.59813910881653 7.5477e-06 deg
tp 2458888.014988352115
(2020-Feb-08.51498835)
1.6977e-05 TDB
period 816.4541033363115
2.24
1.4025e-06
3.84e-09
d
yr
n .4409310927937241 7.5743e-10 deg/d
Q 2.332827539110518 2.6716e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3454  
   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      .32535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-19 09:42:22  

Additional Information
 Earth MOID = .245963 au 
 Jupiter MOID = 3.41058 au 
 T_jup = 3.996 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456303.5 (2013-Jan-11.0) TDB
Reference: JPL 520 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3647129427060692 2.479e-08  
q 1.08613275784607 4.2287e-08 au
tp 2456438.768362987996
(2013-May-26.26836299)
1.4145e-05 TDB
node 246.6295742783377 7.1346e-06 deg
peri 115.4146140598335 9.7148e-06 deg
i 26.86318780827639 5.0866e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3454  
   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      .32535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-19 09:42:22  

Additional Information
 Jupiter MOID = 3.41058 au 
 T_jup = 3.996 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.145272953966794E-16 -1.047801976814097E-15 4.552976626241529E-14 1.137012210289648E-15 1.796906879973811E-14 -8.239597115515299E-15
q -1.047801976814097E-15 1.788173092861769E-15 -6.730830488450111E-14 -2.593291235041351E-15 -2.650408619764632E-14 1.375917242688986E-14
tp 4.552976626241529E-14 -6.730830488450111E-14 2.000868212979109E-10 -5.935490110600655E-12 9.745852681131552E-11 -2.76147623063959E-12
node 1.137012210289648E-15 -2.593291235041351E-15 -5.935490110600655E-12 5.090252021767687E-11 -4.678680326091907E-11 7.487820218081911E-12
peri 1.796906879973811E-14 -2.650408619764632E-14 9.745852681131552E-11 -4.678680326091907E-11 9.437797595795067E-11 -7.610051599069639E-12
i -8.239597115515299E-15 1.375917242688986E-14 -2.76147623063959E-12 7.487820218081911E-12 -7.610051599069639E-12 2.587363612643689E-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 13.8   n/a MPO473791  
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-August); 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

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