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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598150365411734 5.5799e-08  
a 2.24685973971728 1.1667e-08 AU
q 1.887777768311472 1.2506e-07 AU
i 2.825792883535034 5.3246e-06 deg
node 75.76503741876245 0.00011955 deg
peri 263.0095431643008 0.00012078 deg
M 143.3734466203498 1.7373e-05 deg
tp 2456510.576134852019
(2013-Aug-06.07613485)
5.8837e-05 JED
period 1230.162178637614
3.37
9.5815e-06
2.623e-08
d
yr
n .292644340926409 2.2794e-09 deg/d
Q 2.605941711123088 1.3531e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      985  
   data-arc span      10322 days (28.26 yr)  
   first obs. used      1986-08-26  
   last obs. used      2014-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52782  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 03:49:14  

Additional Information
 Earth MOID = .881816 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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