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JPL Small-Body Database Browser
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66280 (1999 JF12)
Classification: Main-belt Asteroid          SPK-ID: 2066280
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 .281895475231008 5.6812e-08  
a 2.32307947186591 1.0996e-08 au
q 1.66821388014487 1.2902e-07 au
i 23.71944200501011 7.4256e-06 deg
node 174.3627662283802 9.4387e-06 deg
peri 128.3888022124887 1.4472e-05 deg
M 303.5061102731386 1.1241e-05 deg
tp 2459203.452079091688
(2020-Dec-19.95207909)
4.096e-05 TDB
period 1293.285854917302
3.54
9.182e-06
2.514e-08
d
yr
n .2783607341186145 1.9763e-09 deg/d
Q 2.97794506358695 1.4095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      10026 days (27.45 yr)  
   first obs. used      1992-07-26  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53283  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:48:11  

Additional Information
 Earth MOID = .731967 au 
 Jupiter MOID = 2.6162 au 
 T_jup = 3.414 
[ 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 15.2   n/a MPO432214  

66280 (1999 JF12)          Discovered 1999-May-14 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JF12 = 2002 EQ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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