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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598150422310855 5.548e-08  
a 2.246859737510116 1.143e-08 AU
q 1.887777753672611 1.2411e-07 AU
i 2.825792712652916 5.1014e-06 deg
node 75.76503995529202 0.00011745 deg
peri 263.0095462010075 0.0001186 deg
M 143.3734428603057 1.6916e-05 deg
tp 2456510.576148422433
(2013-Aug-06.07614842)
5.7073e-05 JED
period 1230.162176824971
3.37
9.3871e-06
2.57e-08
d
yr
n .2926443413576203 2.2331e-09 deg/d
Q 2.605941721347621 1.3257e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1004  
   data-arc span      10379 days (28.42 yr)  
   first obs. used      1986-08-26  
   last obs. used      2015-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52466  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:43:40  

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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