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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 ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1713914647827616 5.3391e-08  
a 2.225315393591593 1.3167e-08 AU
q 1.843915328680302 1.1738e-07 AU
i 5.910293965927438 5.5702e-06 deg
node 132.6587634750481 5.5708e-05 deg
peri 141.746995903447 5.8589e-05 deg
M 228.6622730596526 2.1371e-05 deg
tp 2457242.856873661048
(2015-Aug-08.35687366)
7.4438e-05 JED
period 1212.511273248295
3.32
1.0762e-05
2.946e-08
d
yr
n .2969044560184309 2.6352e-09 deg/d
Q 2.606715458502884 1.5424e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      21519 days (58.92 yr)  
   first obs. used      1955-04-14  
   last obs. used      2014-03-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51602  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:16:24  

Additional Information
 Earth MOID = .831384 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 13.6 mag n/a MPO250293  

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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