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181968 (1999 UW58)
Classification: Main-belt Asteroid          SPK-ID: 2181968
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2097538092428048 6.218e-08  
a 3.085426953121508 2.1174e-08 au
q 2.438246896563851 1.9791e-07 au
i 17.54252779913879 7.4283e-06 deg
node 7.091617852978445 1.5241e-05 deg
peri 326.9845939746079 2.0042e-05 deg
M 12.23863932372507 1.1942e-05 deg
tp 2459133.202029746478
(2020-Oct-10.70202975)
6.5453e-05 TDB
period 1979.572128112521
5.42
2.0378e-05
5.579e-08
d
yr
n .1818574806583341 1.872e-09 deg/d
Q 3.732607009679165 2.5616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      577  
   data-arc span      7761 days (21.25 yr)  
   first obs. used      1999-10-14  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50701  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:50  

Additional Information
 Earth MOID = 1.44679 au 
 Jupiter MOID = 1.76835 au 
 T_jup = 3.122 
[ 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 14.8   n/a MPO401480  

181968 (1999 UW58)          Discovered 1999-Oct-30 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1999 UW58 = 2004 RR17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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