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66828 (1999 UG41)
Classification: Main-belt Asteroid          SPK-ID: 2066828
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2046161282460455 4.3496e-08  
a 2.630873772275093 9.9891e-09 au
q 2.092554567088095 1.1544e-07 au
i 11.12262581004865 5.3315e-06 deg
node 190.5942285215768 1.5434e-05 deg
peri 140.1018534217586 1.9855e-05 deg
M 31.35368377346194 9.8092e-06 deg
tp 2459064.751663278491
(2020-Aug-03.25166328)
4.2584e-05 TDB
period 1558.649426103698
4.27
8.877e-06
2.43e-08
d
yr
n .230969192924881 1.3154e-09 deg/d
Q 3.16919297746209 1.2033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      8746 days (23.95 yr)  
   first obs. used      1997-03-04  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:11  

Additional Information
 Earth MOID = 1.0945 au 
 Jupiter MOID = 2.29613 au 
 T_jup = 3.344 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.37   n/a E2021B10  
diameter diameter 4.412 km 0.955 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66828 (1999 UG41)          Discovered 1999-Oct-17 by LONEOS at Anderson Mesa
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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