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5625 Jamesferguson (1991 AO2)
Classification: Main-belt Asteroid          SPK-ID: 2005625
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1954173787348676 5.5137e-08  
a 2.672414527241213 2.0216e-08 AU
q 2.150178285434754 1.484e-07 AU
i 11.97460868868218 5.6274e-06 deg
node 175.0257572920357 3.1027e-05 deg
peri 217.0668220055368 3.4999e-05 deg
M 204.8415721232195 1.8927e-05 deg
tp 2457688.244351985325
(2016-Oct-26.74435199)
8.8447e-05 JED
period 1595.710720344109
4.37
1.8107e-05
4.957e-08
d
yr
n .2256048013028122 2.56e-09 deg/d
Q 3.194650769047671 2.4167e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      987  
   data-arc span      21781 days (59.63 yr)  
   first obs. used      1955-12-13  
   last obs. used      2015-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45974  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:16:28  

Additional Information
 Earth MOID = 1.1667 AU 
 T_jup = 3.322 
[ 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 13.0 mag n/a MPO309194  

5625 Jamesferguson           Discovered 1991 Jan. 7 by R. H. McNaught at Siding Spring.
James Ferguson (1710-1776) was a Scottish astronomer, who had wide-ranging talents, from portraiture, globe and orrery manufacture, popularising scientific principles through books and lectures, to significant original research. His educational work inspired a generation of the public and a new generation of astronomers.
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 2014-07-12Last Updated: 2014-08-13

[ show close-approach data ]
Alternate Designations
 1991 AO2 = 1955 XS = 1971 KD = 1972 TM = 1985 QC2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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