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47021 (1998 VR12)
Classification: Main-belt Asteroid          SPK-ID: 2047021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522333374501694 3.6845e-08  
a 2.687180596228942 1.0605e-08 au
q 2.278102125733674 1.021e-07 au
i 2.455589364063318 3.3489e-06 deg
node 115.8324766651389 0.00010411 deg
peri 302.7988975106204 0.00010499 deg
M 306.2699590366238 1.2464e-05 deg
tp 2459240.636612569510
(2021-Jan-26.13661257)
5.5563e-05 TDB
period 1608.954301448414
4.41
9.5248e-06
2.608e-08
d
yr
n .2237478091676815 1.3246e-09 deg/d
Q 3.09625906672421 1.222e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      8040 days (22.01 yr)  
   first obs. used      1998-10-20  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51064  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:44:18  

Additional Information
 Earth MOID = 1.29161 au 
 Jupiter MOID = 2.23197 au 
 T_jup = 3.356 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO432028  

47021 (1998 VR12)          Discovered 1998-Nov-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 VR12 = 2000 DJ72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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