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66628 (1999 RF208)
Classification: Main-belt Asteroid          SPK-ID: 2066628
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 .2354589356993061 3.5362e-08  
a 2.614862012419608 8.3433e-09 au
q 1.999169385974741 9.2041e-08 au
i 15.71018865059199 5.4297e-06 deg
node 219.7825480405835 1.5279e-05 deg
peri 85.37387950323168 2.1555e-05 deg
M 48.37480822247312 1.2562e-05 deg
tp 2458992.966435098557
(2020-May-23.46643510)
5.3901e-05 TDB
period 1544.441954600062
4.23
7.3918e-06
2.024e-08
d
yr
n .2330939009573999 1.1156e-09 deg/d
Q 3.230554638864474 1.0308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1305  
   data-arc span      8353 days (22.87 yr)  
   first obs. used      1998-04-01  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:51  

Additional Information
 Earth MOID = 1.05549 au 
 Jupiter MOID = 2.22221 au 
 T_jup = 3.316 
[ 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 15.14   n/a E2021B10  

66628 (1999 RF208)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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