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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1382628215716843 5.9139e-08  
a 2.65356829887169 1.8439e-08 AU
q 2.286678458636515 1.6248e-07 AU
i 13.49836034012503 7.0185e-06 deg
node 164.0356352622079 2.2748e-05 deg
peri 59.10710429870829 3.3239e-05 deg
M 16.81760965485607 2.4264e-05 deg
tp 2456926.742599942606
(2014-Sep-26.24259994)
0.00010631 JED
period 1578.860763544635
4.32
1.6456e-05
4.505e-08
d
yr
n .2280125064301294 2.3766e-09 deg/d
Q 3.020458139106864 2.0988e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1128  
   data-arc span      11023 days (30.18 yr)  
   first obs. used      1984-04-19  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49845  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:08:42  

Additional Information
 Earth MOID = 1.31414 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 12.7 mag n/a MPO298992  

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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