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JPL Small-Body Database Browser
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66829 (1999 UY42)
Classification: Main-belt Asteroid          SPK-ID: 2066829
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06720698578778396 6.053e-08  
a 2.751179410888209 2.3979e-08 au
q 2.566280935321001 1.6419e-07 au
i 7.461322286033304 5.9476e-06 deg
node 281.8993251000534 4.9512e-05 deg
peri 20.30477872722622 6.9251e-05 deg
M 265.5498664817991 5.143e-05 deg
tp 2459437.797375942327
(2021-Aug-11.29737594)
0.00023977 TDB
period 1666.77430168906
4.56
2.1791e-05
5.966e-08
d
yr
n .2159860514019124 2.8238e-09 deg/d
Q 2.936077886455417 2.5591e-08 au
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      7057 days (19.32 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54235  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:24:35  

Additional Information
 Earth MOID = 1.55203 au 
 Jupiter MOID = 2.22405 au 
 T_jup = 3.330 
[ 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 14.7   n/a MPO432221  
diameter diameter 3.589 km 0.995 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.238   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66829 (1999 UY42)          Discovered 1999-Oct-28 by CSS at Catalina
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 UY42 = 2001 DL40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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