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8474 Rettig (1985 GA1)
Classification: Main-belt Asteroid          SPK-ID: 2008474
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1717090924557281 4.9258e-08  
a 2.22454654775448 7.9379e-09 au
q 1.842571678914035 1.1097e-07 au
i 5.91085886592272 4.486e-06 deg
node 132.657447866391 5.3132e-05 deg
peri 141.898796916766 5.5282e-05 deg
M 106.1358499511067 1.3838e-05 deg
tp 2457243.210482469928
(2015-Aug-08.71048247)
4.6419e-05 JED
period 1211.882944076661
3.32
6.4866e-06
1.776e-08
d
yr
n .2970583931060154 1.59e-09 deg/d
Q 2.606521416594924 9.3009e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1355  
   data-arc span      22049 days (60.37 yr)  
   first obs. used      1955-04-14  
   last obs. used      2015-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48998  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:29:58  

Additional Information
 Earth MOID = .830257 au 
 Jupiter MOID = 2.51022 au 
 T_jup = 3.620 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO337327  
rotation period rot_per 30.54 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Chiorny, V.; Benishek, V.; Pravec, P.; Kusnirak, P.; et al. (2015) CBET 4122.]

8474 Rettig           Discovered 1985 Apr. 15 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Terrence W. Rettig (b. 1946) is a planetary astronomer and educator at the University of Notre Dame who has contributed to the understanding of comets and the evolution of planet-forming regions around young stars. He has also served as the National Science Foundation Special Progams Director for Physics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1985 GA1 = 1992 NQ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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