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39513 (1986 QE1)
Classification: Main-belt Asteroid          SPK-ID: 2039513
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1597976959272288 5.7656e-08  
a 2.245955349819892 8.6123e-09 AU
q 1.88705685976324 1.2892e-07 AU
i 2.826852284134633 5.4113e-06 deg
node 75.78122766292763 0.00012207 deg
peri 262.8136986346055 0.00012334 deg
M 85.04300625013134 1.7894e-05 deg
tp 2456510.073522606917
(2013-Aug-05.57352261)
6.0715e-05 JED
period 1229.419519272326
3.37
7.0715e-06
1.936e-08
d
yr
n .2928211195256427 1.6843e-09 deg/d
Q 2.604853839876544 9.9885e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      10050 days (27.52 yr)  
   first obs. used      1986-08-26  
   last obs. used      2014-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54881  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:39:41  

Additional Information
 Earth MOID = .8793 AU 
 T_jup = 3.612 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO267838  

39513 (1986 QE1)          Discovered 1986-Aug-26 by Debehogne, H. at La Silla (809)
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1986 QE1 = 1999 JQ57 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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