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136553 (1445 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2136553
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .151648050899173 4.8771e-08  
a 3.166456818192902 3.1184e-08 au
q 2.686269813457551 1.6496e-07 au
i 11.97249495934052 6.188e-06 deg
node 356.3982382556196 2.4847e-05 deg
peri 262.1173114420934 3.6977e-05 deg
M 271.7675884454351 3.3614e-05 deg
tp 2459900.910862198003
(2022-Nov-17.41086220)
0.00019688 TDB
period 2058.063552745387
5.63
3.0403e-05
8.324e-08
d
yr
n .1749217119752071 2.584e-09 deg/d
Q 3.646643822928252 3.5914e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      17378 days (47.58 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:56:18  

Additional Information
 Earth MOID = 1.70573 au 
 Jupiter MOID = 1.61721 au 
 T_jup = 3.152 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457398.5 (2016-Jan-11.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533968991561475 4.8657e-08  
q 2.682431675519777 1.6524e-07 au
tp 2457839.558606922514
(2017-Mar-27.05860692)
0.00017667 TDB
node 356.4447195526764 2.4837e-05 deg
peri 261.4172096907749 3.6704e-05 deg
i 11.97626148942774 6.1914e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      17378 days (47.58 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:56:18  

Additional Information
 Jupiter MOID = 1.61721 au 
 T_jup = 3.152 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.367514782494039E-15 -7.943825791952556E-15 -1.747950720370502E-12 -4.503934171671484E-15 -1.384410188182688E-13 4.817980830630447E-15
q -7.943825791952556E-15 2.730328295604759E-14 8.255920069706752E-12 1.886771767361761E-14 8.117491331354882E-13 -1.547573690688854E-14
tp -1.747950720370502E-12 8.255920069706752E-12 3.121348236769658E-8 2.956079571839154E-11 4.790053971423793E-9 2.317902668217907E-11
node -4.503934171671484E-15 1.886771767361761E-14 2.956079571839154E-11 6.168781722451029E-10 -5.988674118748125E-10 -6.283154212765129E-11
peri -1.384410188182688E-13 8.117491331354882E-13 4.790053971423793E-9 -5.988674118748125E-10 1.347203628485024E-9 6.537625690651651E-11
i 4.817980830630447E-15 -1.547573690688854E-14 2.317902668217907E-11 -6.283154212765129E-11 6.537625690651651E-11 3.83328665961648E-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 14.73   n/a MPCxxxxx  
diameter diameter 6.735 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136553 (1445 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ 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
1919-Jul-24 21:05 00:04 Jupiter 1.92989620788197 1.92989432509028 1.92989809067443 2.93526127656432 2.78172033474881 2422164.378435678 4.28586628580572 152.067102835947 30.3145957644168 80.4421752315191 821520.70412439 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
1930-Jan-03 08:40 00:04 Jupiter 1.70950405053165 1.70950275762128 1.70950534347807 1.24352081141886 0.745242912459425 2425979.861082164 4.35905949433536 1762.59063476104 362.848003001667 -12.2651107705295 611754.53320866 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
1940-Jul-13 21:12 00:03 Jupiter 1.63699483928121 1.63699385887194 1.63699581971187 3.23014821510561 3.06577998785378 2429824.383518142 2.91258884822799 657.943432991216 31.0670885292141 -89.7096957735566 1148852.36873285 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
1951-Mar-24 06:05 00:02 Jupiter 1.89877431822027 1.89877250798654 1.89877612845896 4.68266162544094 4.58640836764415 2433729.753254844 2.31206145198695 256.060093125026 61.7106440557094 76.5838384618873 1288896.36020606 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
2026-Jul-24 14:01 < 00:01 Jupiter 1.94331892042739 1.94331823454331 1.94331960631136 3.33107675374731 3.19755290704587 2461246.084298467 0.575702752184153 80.5967151767295 28.4663847662534 -89.4399107480485 1744362.06287256 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
2037-Jan-28 05:24 00:01 Jupiter 1.74015540007995 1.74015452597076 1.74015627419269 1.18434331088962 0.655108333524784 2465086.725305527 1.38174718694175 1123.24139731389 386.392327444356 19.6538490385296 1167796.16744342 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
2047-Jul-10 15:09 00:02 Jupiter 1.65939715039468 1.65939634234063 1.65939795845364 2.86360410859703 2.67943066640102 2468902.131110021 1.78313093565345 504.034681109558 38.6938593441794 88.6977958894976 2079050.75071632 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
2058-Mar-10 19:29 00:02 Jupiter 1.86726268974026 1.86726146652126 1.86726391295978 4.56632371394167 4.46587928852191 2472798.311563483 2.124938110314 232.22727642462 53.6531405270656 85.7637295336068 1552325.88762166 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
2133-Jul-12 16:44 00:05 Jupiter 1.9522932615055 1.95229124854547 1.95229527446686 3.62213056822663 3.50030131317079 2500315.197204717 4.92968734677752 152.475808576394 48.5298484122891 66.7292658173198 1037194.03587187 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
2144-Feb-09 21:54 00:07 Jupiter 1.75269665271218 1.75269528244253 1.75269802297166 1.56915497583397 1.2229926369193 2504179.412353755 6.65413427682059 907.471755549839 130.577758221376 -13.4342377768011 378758.897281383 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
2154-Jul-08 16:01 00:07 Jupiter 1.68425940493535 1.68425856677083 1.68426024310131 2.40975241187147 2.19114048952849 2507981.167335331 6.85904992769344 918.473245682381 65.1988984264241 78.9173984692972 1753708.95428918 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56
2165-Feb-22 22:15 00:07 Jupiter 1.84632659385421 1.84632360994612 1.84632957776156 4.4036707855748 4.29823155744179 2511863.427406268 6.50140533723675 256.796789212381 128.136701883403 82.9859083308019 549643.702978563 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:56:20 2021-Aug-25 18:56

Alternate Designations
 1445 T-2 = 2001 RW85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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