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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04792747003816305 8.3367e-08  
a 3.233375396963607 4.1268e-08 au
q 3.0784078945035 2.6488e-07 au
i 17.81357716216771 9.9228e-06 deg
node 337.6127265853705 1.9622e-05 deg
peri 208.3647621723882 8.4655e-05 deg
M 133.2678884997628 8.0004e-05 deg
tp 2456814.349604917918
(2014-Jun-05.84960492)
0.00047605 JED
period 2123.648430357273
5.81
4.0657e-05
1.113e-07
d
yr
n .1695195847174361 3.2454e-09 deg/d
Q 3.388342899423713 4.3246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      726  
   data-arc span      10140 days (27.76 yr)  
   first obs. used      1987-10-18  
   last obs. used      2015-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53375  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:34:14  

Additional Information
 Earth MOID = 2.09163 au 
 Jupiter MOID = 1.62771 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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