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JPL Small-Body Database Browser
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66839 (1999 UE51)
Classification: Main-belt Asteroid          SPK-ID: 2066839
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 .3050579085716738 4.8747e-08  
a 2.609042938302475 2.0862e-08 au
q 1.813133756170228 1.3561e-07 au
i 7.115948013145076 4.3234e-06 deg
node 111.3882902372896 4.5869e-05 deg
peri 194.1140112175831 4.7022e-05 deg
M 19.57069131501895 1.6667e-05 deg
tp 2458916.819564279267
(2020-Mar-08.31956428)
7.0449e-05 TDB
period 1539.289357466147
4.21
1.8462e-05
5.055e-08
d
yr
n .2338741564435959 2.8051e-09 deg/d
Q 3.404952120434723 2.7226e-08 au
  Orbit Determination Parameters
   # obs. used (total)      622  
   data-arc span      8513 days (23.31 yr)  
   first obs. used      1996-01-14  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5781  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:29:00  

Additional Information
 Earth MOID = .798942 au 
 Jupiter MOID = 1.86701 au 
 T_jup = 3.333 
[ 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 15.3   n/a MPO436249  

66839 (1999 UE51)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 UE51 = 1998 HY104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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