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66838 (1999 UF49)
Classification: Main-belt Asteroid          SPK-ID: 2066838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04742273494514569 3.8532e-08  
a 2.749707668503821 1.7461e-08 au
q 2.619309010563729 1.0908e-07 au
i 5.044267076536556 5.1991e-06 deg
node 348.2211035054682 4.2544e-05 deg
peri 58.47403632456234 6.8951e-05 deg
M 261.0596443224072 5.5643e-05 deg
tp 2459854.219253145447
(2022-Oct-01.71925315)
0.00025885 TDB
period 1665.437020150907
4.56
1.5863e-05
4.343e-08
d
yr
n .2161594798507481 2.0589e-09 deg/d
Q 2.880106326443912 1.8289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      523  
   data-arc span      9917 days (27.15 yr)  
   first obs. used      1994-06-13  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56201  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:34:35  

Additional Information
 Earth MOID = 1.63141 au 
 Jupiter MOID = 2.29617 au 
 T_jup = 3.339 
[ 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 15.66   n/a MPO636973  

66838 (1999 UF49)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UF49 = 1994 RX21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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