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243659 (1999 UT57)
Classification: Main-belt Asteroid          SPK-ID: 2243659
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .1311094638232682 5.707e-08  
a 2.571595784091356 2.1396e-08 au
q 2.234435239668962 1.4684e-07 au
i 16.46665185013395 6.8411e-06 deg
node 79.67027285801767 2.26e-05 deg
peri 330.4370537252361 3.4804e-05 deg
M 353.2649121505706 2.8854e-05 deg
tp 2459028.680146632855
(2020-Jun-28.18014663)
0.00012084 TDB
period 1506.268814101277
4.12
1.8799e-05
5.147e-08
d
yr
n .239001164088228 2.9828e-09 deg/d
Q 2.908756328513751 2.4201e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      7667 days (20.99 yr)  
   first obs. used      1999-10-31  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56912  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:55:06  

Additional Information
 Earth MOID = 1.25912 au 
 Jupiter MOID = 2.4405 au 
 T_jup = 3.360 
[ 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 16.0   n/a MPO300152  

243659 (1999 UT57)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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