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21218 (1994 VP7)
Classification: Main-belt Asteroid          SPK-ID: 2021218
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1799761592723217 4.4562e-08  
a 2.996430739643083 1.3844e-08 au
q 2.457144643596599 1.3582e-07 au
i 13.44610442713385 5.0371e-06 deg
node 57.19520083981194 1.4521e-05 deg
peri 10.90142604697569 2.0001e-05 deg
M 34.25818426156457 1.0818e-05 deg
tp 2459216.212078175167
(2021-Jan-01.71207818)		 5.7168e-05 TDB
period 1894.544420725691
5.19		 1.3129e-05
3.595e-08		 d
yr
n .1900192975481169 1.3169e-09 deg/d
Q 3.535716835689568 1.6335e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1649  
   data-arc span      11549 days (31.62 yr)  
   first obs. used      1989-10-02  
   last obs. used      2021-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45698  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:31:29  

Additional Information
 Earth MOID = 1.47188 au 
 Jupiter MOID = 1.82172 au 
 T_jup = 3.189 
[ 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 13.61   n/a MPCxxxxx  

21218 (1994 VP7)          Discovered 1994-Nov-07 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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