| 1980 Tezcatlipoca (1950 LA) |
| Classification: Amor [NEO] SPK-ID: 2001980 |
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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.
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 536 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3645634490704939 | 2.4761e-08 | |
| a | 1.709577917598143 | 1.9577e-09 | au |
| q | 1.086328295503812 | 4.2246e-08 | au |
| i | 26.86722460610751 | 5.0039e-06 | deg |
| node | 246.5733704596364 | 7.1277e-06 | deg |
| peri | 115.4449632502621 | 9.6735e-06 | deg |
| M | 49.59813869704033 | 7.5247e-06 | deg |
| tp | 2458888.014989282950
(2020-Feb-08.51498928) | 1.6924e-05 | TDB |
| period | 816.454103358404
2.24 | 1.4025e-06
3.84e-09 | d
yr |
| n | .4409310927817929 | 7.5741e-10 | deg/d |
| Q | 2.332827539692475 | 2.6715e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
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. 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.DB | Last Updated: 2003-08-29 |
|
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