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120958 (1998 UA43)
Classification: Main-belt Asteroid          SPK-ID: 2120958
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1863173751466317 5.4172e-08  
a 3.141738449273576 3.3972e-08 au
q 2.556377988007675 1.7433e-07 au
i 15.32335399068821 6.5562e-06 deg
node 28.15093345819447 2.0408e-05 deg
peri 305.4012788520253 2.571e-05 deg
M 2.064249511648368 1.9874e-05 deg
tp 2458988.836922614674
(2020-May-19.33692261)
0.00011217 TDB
period 2034.011797035382
5.57
3.2991e-05
9.032e-08
d
yr
n .1769901239140836 2.8707e-09 deg/d
Q 3.727098910539478 4.0301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      7962 days (21.80 yr)  
   first obs. used      1998-10-13  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56374  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:11:41  

Additional Information
 Earth MOID = 1.58305 au 
 Jupiter MOID = 1.86281 au 
 T_jup = 3.129 
[ 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 14.4   n/a MPO436584  
diameter diameter 8.842 km 0.427 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120958 (1998 UA43)          Discovered 1998-Oct-28 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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