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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 541 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3646327013509846 2.4758e-08  
a 1.709606148789928 1.9684e-09 au
q 1.086227840510403 4.2246e-08 au
i 26.86615506368015 4.9621e-06 deg
node 246.5682164147284 7.1195e-06 deg
peri 115.4512228937866 9.6393e-06 deg
M 137.7723057275943 7.6218e-06 deg
tp 2458888.034581568712
(2020-Feb-08.53458157)
1.689e-05 TDB
period 816.4743272691964
2.24
1.4101e-06
3.861e-09
d
yr
n .4409201710041104 7.6149e-10 deg/d
Q 2.332984457069453 2.6861e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3540  
   data-arc span      25820 days (70.69 yr)  
   first obs. used      1950-06-19  
   last obs. used      2021-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32499  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-27 05:51:21  

Additional Information
 Earth MOID = .245238 au 
 Jupiter MOID = 3.41157 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 0.479008948268767 0.47900869509489 0.47900920145027 12.9006067975452 12.9001756103554 2422878.522215293 0.153296634404688 163.727886714232 10.2427458147041 87.4112132315407 4809353.92876527 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
1921-Nov-16 02:26 < 00:01 Earth 0.270165651878363 0.270164514199883 0.270166789576608 16.7529416933319 16.7523529869047 2423009.601247943 0.0474379125680023 129.862621773381 9.33889831772775 -64.4051964341652 3569710.16343915 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
1930-Nov-17 10:44 < 00:01 Earth 0.339165775853293 0.339164268084444 0.339167283636293 13.8569983071791 13.8564313633211 2426297.947352935 0.0673929752864097 132.861167559163 5.66381089067704 55.6105481190276 7187775.48340976 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
1959-Jul-08 17:04 < 00:01 Earth 0.481969514981332 0.481969299127258 0.481969730836064 12.8672086813224 12.8667790304543 2436758.211257591 0.100333893515399 92.8556517094739 10.2614413872555 87.9825625576474 4803887.98183415 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
1959-Nov-16 16:37 < 00:01 Earth 0.272665789557158 0.272665092514053 0.272666486606013 16.8143152790231 16.813734099875 2436889.192065160 0.0370033757695215 73.6248703756001 9.40041871178913 -62.7258219229649 3527984.38385601 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
1968-Nov-16 22:23 < 00:01 Earth 0.33696564567006 0.33696487568662 0.336966415657255 13.8743427522585 13.8737728200094 2440177.432487915 0.0417122597904673 68.4378896396125 5.65351467641868 56.1632277565577 7162972.35765502 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
1997-Jul-08 05:19 < 00:01 Earth 0.483877962922695 0.483877755846475 0.483878169998915 12.844004598396 12.8435758689536 2450637.721384375 0.0538760203896024 26.2682961579423 10.318269295492 -89.0714742832554 4820317.90527668 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
1997-Nov-16 07:56 < 00:01 Earth 0.274286703531772 0.274286446910376 0.274286960153308 16.886579012785 16.8860037406703 2450768.830605805 0.0322200566788421 20.1012466627442 9.65464247246825 -61.5523784889562 3544722.92666746 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2006-Nov-17 07:34 < 00:01 Earth 0.330405795886266 0.330405561574418 0.330406030198265 13.9179450836748 13.9173656568176 2454056.815103868 0.0288977635787909 17.6543319740511 5.90736956586918 52.7032522222792 6587276.25943941 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2035-Jul-08 15:27 < 00:01 Earth 0.486948085184149 0.486947844064675 0.486948326304454 12.8046715502729 12.8042442152393 2464517.143660782 0.0608807830797255 63.0227892865637 10.3262690706926 84.3146043489468 4822044.14654791 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2035-Nov-17 00:45 < 00:01 Earth 0.278457718922132 0.278457258129523 0.278458179717132 17.0299244760864 17.0293625909573 2464648.531218765 0.0375468738043376 50.1175236917863 9.31158623141049 -64.7506232966747 3702072.58376522 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2044-Nov-16 18:05 < 00:01 Earth 0.325907367486105 0.325906527418165 0.32590820755801 13.9487134999843 13.948127371066 2467936.253349468 0.040456997768062 70.8708836326146 5.68202116359908 54.0186867212677 6741869.84887499 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2073-Jul-08 02:32 < 00:01 Earth 0.489592005128944 0.489591686453908 0.489592323812551 12.7757347223917 12.7753087324012 2478396.605812511 0.114548077462482 135.095290256492 10.2914602847749 84.8425765390347 4840256.1268967 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2073-Nov-16 16:09 < 00:01 Earth 0.282899274631356 0.282898224970195 0.282900324304659 17.1490909538707 17.148541733833 2478528.172830800 0.0513008260639708 107.532394285702 9.41015925478603 -61.2715165638303 3589072.31998907 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2082-Nov-17 03:15 < 00:01 Earth 0.31827642430766 0.318274902045424 0.318277946584875 13.9996685132305 13.9990705156738 2481815.635643934 0.0586095323582017 133.015919709281 5.77683323962073 55.2799038582883 6512196.43768993 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2111-Jul-09 07:57 < 00:01 Earth 0.492636754985666 0.492636313147606 0.492637196849965 12.746525134085 12.7461008067907 2492275.831321927 0.173852420659814 203.883734599614 10.269309231 84.5063416661075 4881416.2351821 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2111-Nov-18 10:05 < 00:01 Earth 0.288163955398564 0.2881622514473 0.28816565937607 17.3358618148925 17.3353284383098 2492407.920316225 0.070244206398161 162.04685180136 9.50564464763162 -58.5371611874029 3514811.04788698 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2120-Nov-17 12:34 < 00:01 Earth 0.310906330174738 0.310904230569502 0.310908429811998 14.0535054688965 14.0528956406338 2495695.023343980 0.0738920187456533 189.185412608582 5.90514905273635 56.439414168619 6245613.77423632 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2149-Jul-08 14:56 < 00:01 Earth 0.496651266964835 0.496650692176841 0.496651841800681 12.7121072587099 12.7116852217658 2506155.122001401 0.227520104184304 261.876974534837 10.2623278475807 84.1296221795196 4916921.18149526 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2149-Nov-18 03:26 < 00:01 Earth 0.296956576275467 0.296954227748754 0.296958924841899 17.5471537668595 17.5466424159231 2506287.643035996 0.0892439993608461 207.933585425086 9.59551831177066 -55.8119583566084 3472463.02852552 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2158-Nov-17 21:28 < 00:01 Earth 0.302914393007084 0.302911858875515 0.302916927190222 14.1153608370631 14.114737662024 2509574.394545679 0.0821795668823396 234.331042942824 6.02322721276087 57.394989387081 5984646.79919258 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2187-Jul-08 20:39 < 00:01 Earth 0.499514843312613 0.499514135936671 0.49951555075724 12.6971475371788 12.6967274252844 2520034.360483950 0.269522077375087 307.371455961659 10.2567153286187 83.6922286235721 4956860.06229446 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2187-Nov-18 21:15 < 00:01 Earth 0.302848804962035 0.302845915374037 0.302851694601299 17.7225547519429 17.7220583125356 2520167.385185929 0.106776940630498 243.998704241977 9.66509306739448 -53.8665734027266 3429862.80763568 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
2196-Nov-17 06:40 < 00:01 Earth 0.294199118589736 0.294196368835154 0.294201868415425 14.1957535028544 14.1951155004737 2523453.777486822 0.0834714800784096 266.334789872407 6.20896292757115 59.0383735468469 5690969.83205147 T 541 CATAB v2.0f-lin.ifort 2021-Feb-27 05:51:30 2021-Feb-27 05:51
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