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JPL Small-Body Database Browser
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359797 (2011 UN203)
Classification: Main-belt Asteroid          SPK-ID: 2359797
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07183858937438797 5.8533e-08  
a 3.09352855959738 5.607e-08 au
q 2.871293831686522 1.6268e-07 au
i 15.10275369015787 9.4137e-06 deg
node 228.8530662370128 2.1272e-05 deg
peri 259.1507255999471 7.0247e-05 deg
M 146.6067619730809 6.7246e-05 deg
tp 2458191.159780900616
(2018-Mar-13.65978090)
0.00037076 TDB
period 1987.374081212411
5.44
5.4031e-05
1.479e-07
d
yr
n .1811435518875136 4.9248e-09 deg/d
Q 3.315763287508238 6.0098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      6758 days (18.50 yr)  
   first obs. used      2000-11-28  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54106  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:45:04  

Additional Information
 Earth MOID = 1.9349 au 
 Jupiter MOID = 1.89983 au 
 T_jup = 3.167 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457539.5 (2016-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07288047274268208 5.8642e-08  
q 2.863997924722473 1.6323e-07 au
tp 2458181.993015692822
(2018-Mar-04.49301569)
0.00036556 TDB
node 228.9088604701697 2.1236e-05 deg
peri 257.1252186905178 6.9496e-05 deg
i 15.12537745351639 9.4245e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      6758 days (18.50 yr)  
   first obs. used      2000-11-28  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54106  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:45:04  

Additional Information
 Jupiter MOID = 1.89983 au 
 T_jup = 3.167 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.438887622337862E-15 -9.189888801671406E-15 4.97195848922199E-13 -1.100766141449539E-14 -1.246385278590357E-13 3.613437975603364E-15
q -9.189888801671406E-15 2.664432579543479E-14 -1.191291428896848E-12 2.560324499523794E-14 2.29068747880992E-13 -7.959421385305839E-15
tp 4.97195848922199E-13 -1.191291428896848E-12 1.336367372307146E-7 3.267264352084724E-11 2.415556995293311E-8 -4.401791154670135E-11
node -1.100766141449539E-14 2.560324499523794E-14 3.267264352084724E-11 4.509855065321217E-10 -4.280411852937679E-10 -3.09084742270157E-11
peri -1.246385278590357E-13 2.29068747880992E-13 2.415556995293311E-8 -4.280411852937679E-10 4.829668352263546E-9 2.163621862998345E-11
i 3.613437975603364E-15 -7.959421385305839E-15 -4.401791154670135E-11 -3.09084742270157E-11 2.163621862998345E-11 8.882205888302582E-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 15.4   n/a MPO434269  
diameter diameter 3.039 km 0.631 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

359797 (2011 UN203)          Discovered 2010-Jun-10 by WISE at WISE
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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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
1951-Mar-04 00:08 00:06 Jupiter 1.99503269578779 1.99503127048746 1.99503412110002 3.36333852749195 3.23464288408416 2433709.505444215 5.81901423877638 330.528460680171 40.3158724629189 -71.7867234350731 856754.619681684 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 06:45:05 2019-Sep-24 06:45
2011-Mar-06 18:57 < 00:01 Jupiter 1.91887760063105 1.91887674953259 1.9188784517294 4.57393333253583 4.47638636868258 2455627.289821244 0.489036123161494 87.7613232647703 38.4513832062471 88.1525253499381 1556998.90928337 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 06:45:05 2019-Sep-24 06:45
2071-Feb-10 10:47 00:04 Jupiter 1.91454982198996 1.91454880268052 1.91455084131616 5.31342423854155 5.22949809429673 2477517.949226202 4.16137089873361 461.989533484473 37.9091260556055 86.627374056511 1939248.93534995 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 06:45:05 2019-Sep-24 06:45
2140-Dec-27 21:09 00:11 Jupiter 1.97319576022051 1.9731925976084 1.97319892290497 3.53762418349585 3.41412598542599 2503040.381338341 11.3188862338957 654.369148474075 41.5279318813361 -69.3475398669877 915614.420176437 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 06:45:05 2019-Sep-24 06:45
2200-Dec-28 20:33 00:15 Jupiter 1.89094358580529 1.89094161468475 1.89094555728613 4.65735444244276 4.56016200875389 2524955.356563868 14.5271035881897 1452.69755066847 38.0174685724809 -85.2162757154415 1514402.63992067 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 06:45:05 2019-Sep-24 06:45

Alternate Designations
 2011 UN203 = 2010 LT69 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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