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4252 Godwin (1985 RG4)
Classification: Main-belt Asteroid          SPK-ID: 2004252
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1381798089166584 6.2892e-08  
a 2.65334007069326 1.7682e-08 AU
q 2.286702046733953 1.7113e-07 AU
i 13.49852997597972 7.7962e-06 deg
node 164.037283809393 2.4743e-05 deg
peri 59.08062705321869 3.6652e-05 deg
M 331.2300106010456 2.6968e-05 deg
tp 2456926.660964826145
(2014-Sep-26.16096483)
0.00011842 JED
period 1578.657075871669
4.32
1.578e-05
4.32e-08
d
yr
n .228041925952299 2.2795e-09 deg/d
Q 3.019978094652568 2.0125e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1096  
   data-arc span      10942 days (29.96 yr)  
   first obs. used      1984-04-19  
   last obs. used      2014-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53317  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:45:44  

Additional Information
 Earth MOID = 1.31306 AU 
 T_jup = 3.336 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6 mag n/a MPO256894  

4252 Godwin           Discovered 1985 Sept. 11 by H. Debehogne at the European Southern Observatory.
Richard Godwin (b. 1955), a board member of the Space Frontier Foundation, served as executive director of The Watch, a support organization for NEO detection. His brother Robert Godwin (b. 1958) is a space expert and space-history researcher. Together they founded a space book company and write extensively on space.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

Alternate Designations
 1985 RG4 = 1984 HE 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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