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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04794404960122628 4.6969e-08  
a 2.747658569827404 1.8781e-08 au
q 2.615924691068365 1.278e-07 au
i 5.043589727596695 5.6681e-06 deg
node 348.2374562888792 4.4539e-05 deg
peri 59.17183759510115 7.0286e-05 deg
M 217.968401787713 5.5208e-05 deg
tp 2459856.834219953412
(2022-Oct-04.33421995)
0.00025701 TDB
period 1663.575726508919
4.55
1.7057e-05
4.67e-08
d
yr
n .2164013301369061 2.2188e-09 deg/d
Q 2.879392448586444 1.9682e-08 au
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      9479 days (25.95 yr)  
   first obs. used      1994-06-13  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:16  

Additional Information
 Earth MOID = 1.6279 au 
 Jupiter MOID = 2.29793 au 
 T_jup = 3.340 
[ 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 15.65   n/a E2021B10  

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

[ show close-approach data ]
Alternate Designations
 1999 UF49 = 1994 RX21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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