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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .160944401508613 4.5302e-08  
a 3.12706331701375 2.7273e-08 au
q 2.623779982977434 1.4168e-07 au
i 3.928219474216603 6.032e-06 deg
node 298.4820531508981 6.8877e-05 deg
peri 70.60788065247398 7.1647e-05 deg
M 344.7058319027326 1.9821e-05 deg
tp 2459086.307805997373
(2020-Aug-24.80780600)
0.00011169 TDB
period 2019.777078595958
5.53
2.6423e-05
7.234e-08
d
yr
n .1782374915603324 2.3318e-09 deg/d
Q 3.630346651050066 3.1662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      7160 days (19.60 yr)  
   first obs. used      1998-10-28  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60819  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:55:24  

Additional Information
 Earth MOID = 1.62636 au 
 Jupiter MOID = 1.8704 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 14.4   n/a MPO351308  
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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