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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415791126699363 6.8021e-08  
a 2.248247655443452 8.7742e-09 AU
q 1.929942747323504 1.5418e-07 AU
i 3.91472938213156 5.633e-06 deg
node 117.2479509918562 9.3274e-05 deg
peri 232.5195799460227 9.4793e-05 deg
M 67.03965152573093 1.6496e-05 deg
tp 2456571.205362497217
(2013-Oct-05.70536250)
5.6316e-05 JED
period 1231.302186427971
3.37
7.2081e-06
1.973e-08
d
yr
n .2923733945802258 1.7116e-09 deg/d
Q 2.566552563563401 1.0016e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      10019 days (27.43 yr)  
   first obs. used      1986-08-28  
   last obs. used      2014-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57267  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:06:14  

Additional Information
 Earth MOID = .925075 AU 
 T_jup = 3.613 
[ 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 (809)
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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