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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04785861337155091 8.3772e-08  
a 3.231529091008546 4.123e-08 AU
q 3.076872589643048 2.6601e-07 AU
i 17.81416530048624 9.9325e-06 deg
node 337.6162563020997 1.9626e-05 deg
peri 207.6937384426847 8.4366e-05 deg
M 32.18421472193067 8.0211e-05 deg
tp 2456810.807155922194
(2014-Jun-02.30715592)
0.00047379 JED
period 2121.829737280401
5.81
4.0607e-05
1.112e-07
d
yr
n .169664885770439 3.247e-09 deg/d
Q 3.386185592374043 4.3203e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      722  
   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      .53521  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:28:45  

Additional Information
 Earth MOID = 2.09156 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 13.0 mag n/a MPO302139  

11890 (1991 FF)          Discovered 1991-Mar-18 by McNaught, R. H. at Siding Spring
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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