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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 537 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3645634489721971 2.476e-08  
a 1.709577917576679 1.9577e-09 au
q 1.086328295658218 4.2245e-08 au
i 26.86722470137853 4.9966e-06 deg
node 246.573370502069 7.1265e-06 deg
peri 115.4449630799087 9.6684e-06 deg
M 49.59813879360888 7.5226e-06 deg
tp 2458888.014989066058
(2020-Feb-08.51498907)
1.6919e-05 TDB
period 816.4541033430276
2.24
1.4025e-06
3.84e-09
d
yr
n .4409310927900971 7.5741e-10 deg/d
Q 2.332827539495139 2.6715e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3525  
   data-arc span      25784 days (70.59 yr)  
   first obs. used      1950-06-19  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32535  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-22 05:18:38  

Additional Information
 Earth MOID = .245963 au 
 Jupiter MOID = 3.41058 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 13.8   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.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1921-Jul-08 00:32 < 00:01 Earth 0.479008948475795 0.479008694744604 0.479009202214611 12.9006069812095 12.9001757940261 2422878.522213982 0.153399742774967 163.733515402432 10.2722303742791 87.4089570388897 4782528.09427351 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
1921-Nov-16 02:26 < 00:01 Earth 0.270165657731134 0.270164519914984 0.270166795567034 16.7529418574316 16.7523531510228 2423009.601247918 0.0475527847096769 129.865763449649 9.37267012166458 -64.4047031049038 3553278.01564338 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
1930-Nov-17 10:44 < 00:01 Earth 0.339165770402672 0.339164262554397 0.339167278265099 13.856998338717 13.8564313948511 2426297.947352458 0.0674130550722915 132.86393875412 5.67847233286614 55.609685097753 7159201.25046982 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
1959-Jul-08 17:04 < 00:01 Earth 0.481969514623557 0.481969298152672 0.481969731095073 12.8672082773682 12.8667786264863 2436758.211259186 0.100476811825151 92.860219925961 10.2912427133533 87.9777757847926 4776956.3558101 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
1959-Nov-16 16:37 < 00:01 Earth 0.272665792318185 0.272665095116826 0.27266648952531 16.8143154001203 16.8137342209822 2436889.192065493 0.0371406325383755 73.6275033258882 9.43521377930628 -62.7264890651451 3511608.17425404 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
1968-Nov-16 22:23 < 00:01 Earth 0.336965644682382 0.336964874593232 0.336966414775287 13.8743427752464 13.8737728429966 2440177.432487699 0.0417543131413619 68.4400472324736 5.6681849554052 56.1605828426343 7134057.47458187 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
1997-Jul-08 05:19 < 00:01 Earth 0.483877962287237 0.483877754615721 0.483878169958753 12.844004877188 12.8435761477543 2450637.721383150 0.0541060310857573 26.2739061311487 10.3484470903979 -89.1016076988403 4793293.43528414 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
1997-Nov-16 07:56 < 00:01 Earth 0.274286704678532 0.274286447802777 0.274286961554444 16.8865791084972 16.8860038363881 2450768.830606281 0.0323642609317256 20.1073177661652 9.6900620031036 -61.6097845179141 3530641.97969283 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2006-Nov-17 07:34 < 00:01 Earth 0.33040579723663 0.330405562590904 0.330406031882525 13.9179451856793 13.9173657588286 2454056.815104783 0.0289774950895367 17.6643675854224 5.91934267488537 52.6668766808296 6563206.45670328 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2035-Jul-08 15:27 < 00:01 Earth 0.486948084435249 0.486947842853136 0.486948326018193 12.8046719465619 12.804244611541 2464517.143659118 0.0610487127416283 63.0268424171259 10.3536797791102 84.3154429765838 4795485.45094017 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2035-Nov-17 00:45 < 00:01 Earth 0.278457719344079 0.27845725849246 0.278458180198088 17.0299244895075 17.0293626043796 2464648.531218791 0.0376588010482456 50.1239732243851 9.3445769484464 -64.7655052720812 3685870.4467362 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2044-Nov-16 18:05 < 00:01 Earth 0.325907369307181 0.325906529101849 0.325908209516477 13.9487135112348 13.9481273823203 2467936.253349355 0.0405278608106594 70.8775699040012 5.69502806217132 54.016876905612 6716882.9138568 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2073-Jul-08 02:32 < 00:01 Earth 0.489592004237636 0.489591685248956 0.489592323234888 12.7757348174344 12.7753088274464 2478396.605812220 0.114620420280562 135.100778493116 10.3191613748582 84.8440066621406 4813615.86958997 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2073-Nov-16 16:09 < 00:01 Earth 0.282899274253049 0.282898224584621 0.282900323933619 17.1490909128538 17.1485416928141 2478528.172830579 0.0513740609351556 107.538979454316 9.44521122471025 -61.2762403850585 3572541.87442091 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2082-Nov-17 03:15 < 00:01 Earth 0.318276427497403 0.318274905108745 0.318277949901042 13.9996685730176 13.9990705754695 2481815.635644507 0.058668886884665 133.023924163028 5.79020301546876 55.2793436547985 6487550.55019375 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2111-Jul-09 07:57 < 00:01 Earth 0.492636753651646 0.492636311621681 0.492637195707821 12.7465250717669 12.7461007444694 2492275.831322462 0.173889538690967 203.891786576336 10.2964381334117 84.5075107229415 4854873.38487208 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2111-Nov-18 10:05 < 00:01 Earth 0.288163953049893 0.288162249088209 0.288165657037819 17.335861628813 17.3353282522202 2492407.920315309 0.0702902637438623 162.055082640517 9.54214336107737 -58.5399748171822 3498322.56416592 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2120-Nov-17 12:34 < 00:01 Earth 0.310906335189019 0.310904235443849 0.310908434966194 14.053505459496 14.0528956312427 2495695.023343957 0.0739467325260234 189.195342085673 5.91877264272963 56.4390647758188 6221638.27731315 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2149-Jul-08 14:56 < 00:01 Earth 0.496651265160825 0.496650690246102 0.496651840123343 12.7121075019688 12.7116854650313 2506155.122000728 0.227542818619407 261.887640975136 10.2890190412398 84.1306052408557 4890445.32309289 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2149-Nov-18 03:26 < 00:01 Earth 0.296956571932407 0.296954223378332 0.296958920526201 17.5471537352026 17.5466423842579 2506287.643036462 0.0892756281248464 207.943662002696 9.63337292153252 -55.8141034179717 3455930.3126588 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2158-Nov-17 21:28 < 00:01 Earth 0.3029143995642 0.302911865274698 0.302916933905289 14.115360746455 14.1147375714254 2509574.394544957 0.0822338268109442 234.34290278642 6.0370493056241 57.3946925817079 5961487.50618282 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2187-Jul-08 20:39 < 00:01 Earth 0.499514840851097 0.499514133386285 0.499515548384594 12.6971479124388 12.6967278005549 2520034.360482854 0.269538325394515 307.384415894215 10.2828717442596 83.6931021829582 4930512.92423893 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2187-Nov-18 21:15 < 00:01 Earth 0.302848797960911 0.302845908326017 0.30285168764707 17.7225545734153 17.7220581339915 2520167.385185746 0.106799756342426 244.010385442049 9.7039393402733 -53.8683938003875 3413388.46564826 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
2196-Nov-17 06:40 < 00:01 Earth 0.2941991274582 0.294196377529345 0.294201877458162 14.1957535107179 14.1951155083567 2523453.777487481 0.0835278558828358 266.348295649231 6.2234152070145 59.0380559497347 5668591.73830922 T 537 CATAB v2.0f-lin.ifort 2021-Jan-22 05:18:45 2021-Jan-22 05:18
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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