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7168 (1986 QE2)
Classification: Main-belt Asteroid          SPK-ID: 2007168
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1416459567269153 6.3876e-08  
a 2.249183642576402 9.5559e-09 AU
q 1.93059587366914 1.4415e-07 AU
i 3.914669002407223 5.6038e-06 deg
node 117.247722979476 7.8848e-05 deg
peri 232.7031194400031 8.0222e-05 deg
M 125.289820786642 1.5115e-05 deg
tp 2456571.705615961801
(2013-Oct-06.20561596)
5.1269e-05 JED
period 1232.071187304384
3.37
7.8519e-06
2.15e-08
d
yr
n .2921909088610655 1.8621e-09 deg/d
Q 2.567771411483665 1.0909e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1274  
   data-arc span      10409 days (28.50 yr)  
   first obs. used      1986-08-28  
   last obs. used      2015-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53816  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:07:33  

Additional Information
 Earth MOID = .927449 AU 
 T_jup = 3.612 
[ 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 14.2 mag n/a MPO272672  

7168 (1986 QE2)          Discovered 1986-Aug-28 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1986 QE2 = 1992 HW6 = 1993 TP13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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