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21165 (1993 VF2)
Classification: Main-belt Asteroid          SPK-ID: 2021165
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666285839628558 5.9372e-08  
a 2.194323139228215 1.76e-08 AU
q 1.828686181781689 1.3447e-07 AU
i 3.86579198415162 5.7104e-06 deg
node 74.24348420775929 8.9683e-05 deg
peri 325.19559377237 9.1795e-05 deg
M 180.1926385686343 2.3362e-05 deg
tp 2457593.499419666462
(2016-Jul-23.99941967)
8.2146e-05 JED
period 1187.269472064489
3.25
1.4284e-05
3.911e-08
d
yr
n .3032167578384816 3.6481e-09 deg/d
Q 2.559960096674741 2.0533e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      807  
   data-arc span      8561 days (23.44 yr)  
   first obs. used      1991-01-08  
   last obs. used      2014-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55348  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:35:35  

Additional Information
 Earth MOID = .837994 AU 
 T_jup = 3.649 
[ 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 15.0 mag n/a MPO302194  

21165 (1993 VF2)          Discovered 1993-Nov-11 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 VF2 = 1998 FX11 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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