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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04784868906450304 9.7798e-08  
a 3.231387572031303 4.2952e-08 AU
q 3.076769912850278 3.0934e-07 AU
i 17.81448429098137 1.1302e-05 deg
node 337.6175474024354 2.1375e-05 deg
peri 207.5433216323065 9.3449e-05 deg
M 358.386520686299 8.8695e-05 deg
tp 2456810.009176388613
(2014-Jun-01.50917639)
0.00052267 JED
period 2121.690356257543
5.81
4.2302e-05
1.158e-07
d
yr
n .1696760316312156 3.383e-09 deg/d
Q 3.386005231212329 4.5007e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      9667 days (26.47 yr)  
   first obs. used      1987-10-18  
   last obs. used      2014-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55358  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:01:16  

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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