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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .159815048147829 5.4962e-08  
a 2.246859735064066 1.1017e-08 AU
q 1.887777738323384 1.2256e-07 AU
i 2.825793727341518 4.5486e-06 deg
node 75.76503187800462 0.0001147 deg
peri 263.0095603215516 0.00011569 deg
M 143.3734388158963 1.6108e-05 deg
tp 2456510.576163042689
(2013-Aug-06.07616304)
5.3944e-05 JED
period 1230.162174816141
3.37
9.0476e-06
2.477e-08
d
yr
n .2926443418355024 2.1523e-09 deg/d
Q 2.605941731804748 1.2777e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      10465 days (28.65 yr)  
   first obs. used      1986-08-26  
   last obs. used      2015-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52013  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:23:20  

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 14.9 mag n/a MPO337578  

39513 (1986 QE1)          Discovered 1986-Aug-26 by Debehogne, H. at La Silla
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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