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175204 Gregbyrne (2005 FT5)
Classification: Main-belt Asteroid          SPK-ID: 2175204
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1048099434336507 3.421e-08  
a 2.767304079071613 1.9363e-08 au
q 2.477263095080406 9.384e-08 au
i 10.08814814439234 4.0271e-06 deg
node 129.813306258887 2.2862e-05 deg
peri 118.1762738336488 3.224e-05 deg
M 111.4693900996216 2.1751e-05 deg
tp 2458679.860785669841
(2019-Jul-15.36078567)
0.0001014 TDB
period 1681.44920315208
4.60
1.7648e-05
4.832e-08
d
yr
n .2141010262606425 2.2471e-09 deg/d
Q 3.05734506306282 2.1392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      7579 days (20.75 yr)  
   first obs. used      2000-03-26  
   last obs. used      2020-12-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:26  

Additional Information
 Earth MOID = 1.48025 au 
 Jupiter MOID = 2.05104 au 
 T_jup = 3.308 
[ 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 15.46   n/a E2021B55  
diameter diameter 2.580 km 0.497 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175204 Gregbyrne           Discovered 2005 Mar. 31 by V. Reddy at at the Goodricke-Pigott Observatory, Tucson.
Greg Byrne (b. 1955) is a space physicist. He began his NASA career training astronauts for Space Shuttle flights, served as the chief of Astromaterials Research & Exploration Science at Johnson Space Center; and the NASA chair professor of space systems at the Naval Postgraduate School.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2020-08-07Last Updated: 2020-08-24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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