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21218 (1994 VP7)
Classification: Main-belt Asteroid          SPK-ID: 2021218
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1757435188120831 6.2249e-08  
a 2.999897938132971 4.0536e-08 AU
q 2.47268531840837 1.9492e-07 AU
i 13.42258340076402 7.5034e-06 deg
node 57.31867808314555 3.7432e-05 deg
peri 9.437242822877547 4.8824e-05 deg
M 301.1113842272933 3.6564e-05 deg
tp 2457310.946659686919
(2015-Oct-15.44665969)
0.00019676 JED
period 1897.83366480638
5.20
3.8467e-05
1.053e-07
d
yr
n .1896899642344198 3.8448e-09 deg/d
Q 3.527110557857572 4.766e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      669  
   data-arc span      9101 days (24.92 yr)  
   first obs. used      1989-10-02  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51824  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:14:29  

Additional Information
 Earth MOID = 1.48679 AU 
 T_jup = 3.189 
[ 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 13.4 mag n/a MPO233639  

21218 (1994 VP7)          Discovered 1994-Nov-07 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20010208/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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