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JPL Small-Body Database Browser
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461431 (2001 VR21)
Classification: Main-belt Asteroid          SPK-ID: 2461431
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2369148913973108 1.6403e-07  
a 2.607250340088281 3.0759e-08 au
q 1.989553908920664 4.2336e-07 au
i 26.77102071077814 1.1528e-05 deg
node 52.82113475449166 2.2357e-05 deg
peri 285.9407257032057 3.6884e-05 deg
M 101.7785228907917 4.2764e-05 deg
tp 2458165.763435595696
(2018-Feb-16.26343560)
0.00017727 TDB
period 1537.70322795389
4.21
2.7212e-05
7.45e-08
d
yr
n .234115395907067 4.143e-09 deg/d
Q 3.224946771255897 3.8047e-08 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      6255 days (17.13 yr)  
   first obs. used      2001-10-24  
   last obs. used      2018-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63275  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:44:27  

Additional Information
 Earth MOID = 1.13584 au 
 Jupiter MOID = 2.61983 au 
 T_jup = 3.224 
[ 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 16.5   n/a MPO456234  

461431 (2001 VR21)          Discovered 2001-Nov-09 by LINEAR at Socorro
Reference: Last Updated: 2016-03-24

Alternate Designations
 2001 VR21 = 2005 SJ10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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