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201756 (2003 VR4)
Classification: Main-belt Asteroid          SPK-ID: 2201756
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07883482376357907 4.7635e-08  
a 2.767208284797568 2.7607e-08 au
q 2.549055907348436 1.4303e-07 au
i 1.749156923522816 5.5216e-06 deg
node 324.2624455079239 0.00021452 deg
peri 338.5033177935471 0.00021962 deg
M 314.9473842401065 4.5544e-05 deg
tp 2459210.915976157503
(2020-Dec-27.41597616)
0.00021217 TDB
period 1681.361895176229
4.60
2.5161e-05
6.889e-08
d
yr
n .2141121438714818 3.2041e-09 deg/d
Q 2.9853606622467 2.9783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      6119 days (16.75 yr)  
   first obs. used      2003-10-20  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:03:52  

Additional Information
 Earth MOID = 1.53378 au 
 Jupiter MOID = 2.17771 au 
 T_jup = 3.334 
[ 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 16.2   n/a MPO433322  

201756 (2003 VR4)          Discovered 2003-Nov-15 by Spacewatch at Kitt Peak
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

Alternate Designations
 2003 VR4 = 2007 RG213 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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