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11890 (1991 FF)
Classification: Outer Main-belt Asteroid          SPK-ID: 2011890
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04784866275054078 8.3832e-08  
a 3.231387574603354 4.1392e-08 AU
q 3.076770000329871 2.6638e-07 AU
i 17.81448195087814 9.9377e-06 deg
node 337.6175117105078 1.9699e-05 deg
peri 207.5433496311695 8.4447e-05 deg
M 358.3865227198171 8.0514e-05 deg
tp 2456810.009164415255
(2014-Jun-01.50916442)
0.00047446 JED
period 2121.69035879071
5.81
4.0766e-05
1.116e-07
d
yr
n .1696760314286329 3.2601e-09 deg/d
Q 3.386005148876838 4.3372e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      693  
   data-arc span      9723 days (26.62 yr)  
   first obs. used      1987-10-18  
   last obs. used      2014-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54419  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:48:27  

Additional Information
 Earth MOID = 2.09081 AU 
 T_jup = 3.109 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO263456  

11890 (1991 FF)          Discovered 1991-Mar-18 by McNaught, R. H. at Siding Spring (413)
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

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