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

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1664194389235194 4.1341e-08  
a 2.194614878472955 5.645e-09 au
q 1.829388301744278 9.1188e-08 au
i 3.866140131233707 4.3503e-06 deg
node 74.21587247600426 4.9249e-05 deg
peri 325.5443570948568 5.0272e-05 deg
M 126.6529097947248 9.2674e-06 deg
tp 2458782.719104119830
(2019-Oct-26.21910412)
3.0564e-05 TDB
period 1187.506254381575
3.25
4.5818e-06
1.254e-08
d
yr
n .3031562980588086 1.1697e-09 deg/d
Q 2.559841455201632 6.5844e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1645  
   data-arc span      11024 days (30.18 yr)  
   first obs. used      1991-01-08  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48578  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:40:48  

Additional Information
 Earth MOID = .838059 au 
 Jupiter MOID = 2.84041 au 
 T_jup = 3.649 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.06   n/a E2021B10  

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

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