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66161 (1998 UG40)
Classification: Main-belt Asteroid          SPK-ID: 2066161
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1609317711633451 4.3612e-08  
a 3.127028443388717 1.8901e-08 au
q 2.623790217516012 1.314e-07 au
i 3.928250104303134 4.1237e-06 deg
node 298.4827666283193 6.7348e-05 deg
peri 70.65844323833826 6.9256e-05 deg
M 20.31713392719719 1.3082e-05 deg
tp 2459086.512791813453
(2020-Aug-25.01279181)
7.3586e-05 TDB
period 2019.743291263419
5.53
1.8312e-05
5.014e-08
d
yr
n .1782404732112305 1.616e-09 deg/d
Q 3.630266669261421 2.1943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1089  
   data-arc span      8114 days (22.21 yr)  
   first obs. used      1998-10-28  
   last obs. used      2021-01-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51205  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:19:54  

Additional Information
 Earth MOID = 1.62487 au 
 Jupiter MOID = 1.87155 au 
 T_jup = 3.191 
[ 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 14.35   n/a E2021B10  
diameter diameter 7.067 km 0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66161 (1998 UG40)          Discovered 1998-Oct-28 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 UG40 = 1998 VS8 = 2000 CO37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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