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3667 Anne-Marie (1981 EF)
Classification: Main-belt Asteroid          SPK-ID: 2003667
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2327468466638329 5.401e-08  
a 3.079559027044882 2.944e-08 AU
q 2.362801374385044 1.6076e-07 AU
i 16.24475324548552 8.4409e-06 deg
node .1340767502937749 2.072e-05 deg
peri 74.03265350927779 2.8916e-05 deg
M 137.078225673858 1.66e-05 deg
tp 2456248.881952519499
(2012-Nov-17.38195252)
8.9694e-05 JED
period 1973.927629737206
5.40
2.8306e-05
7.75e-08
d
yr
n .1823775069443289 2.6153e-09 deg/d
Q 3.796316679704719 3.6293e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      872  
   data-arc span      13056 days (35.75 yr)  
   first obs. used      1979-09-23  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51576  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:46:30  

Additional Information
 Earth MOID = 1.43559 AU 
 T_jup = 3.126 
[ 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 12.1 mag n/a MPO263379  

3667 Anne-Marie (1981 EF)          Discovered 1981-Mar-09 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 EF = 1979 SC7 = 1985 YO 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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