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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2820224292985515 3.7032e-08  
a 2.323500878547088 8.915e-09 au
q 1.66822151630192 8.6813e-08 au
i 23.71982669805951 6.4223e-06 deg
node 174.3565875812567 8.102e-06 deg
peri 128.3753074863006 1.3869e-05 deg
M 359.190675867917 9.8116e-06 deg
tp 2459203.408256301892
(2020-Dec-19.90825630)
3.526e-05 TDB
period 1293.637774011016
3.54
7.4453e-06
2.038e-08
d
yr
n .278285009322041 1.6016e-09 deg/d
Q 2.978780240792256 1.1429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1168  
   data-arc span      10311 days (28.23 yr)  
   first obs. used      1992-07-26  
   last obs. used      2020-10-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49807  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:20:48  

Additional Information
 Earth MOID = .7303 au 
 Jupiter MOID = 2.61583 au 
 T_jup = 3.413 
[ 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 15.21   n/a E2021B10  

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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