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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1797922092579114 4.4845e-08  
a 2.995779423873589 1.3897e-08 au
q 2.457161622805964 1.3671e-07 au
i 13.44724270765768 5.116e-06 deg
node 57.19858145209016 1.4836e-05 deg
peri 10.89508881780786 2.0273e-05 deg
M 357.0168434898236 1.1003e-05 deg
tp 2459216.194110839612
(2021-Jan-01.69411084)
5.7865e-05 TDB
period 1893.926746044636
5.19
1.3178e-05
3.608e-08
d
yr
n .1900812693795262 1.3226e-09 deg/d
Q 3.534397224941215 1.6395e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1508  
   data-arc span      11431 days (31.30 yr)  
   first obs. used      1989-10-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45628  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:51:25  

Additional Information
 Earth MOID = 1.4716 au 
 Jupiter MOID = 1.82206 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 13.60   n/a E2021B10  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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