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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1423627566951188 6.3434e-08  
a 2.248012704521086 9.4488e-09 au
q 1.927979418819815 1.4305e-07 au
i 3.913995804302061 5.5744e-06 deg
node 117.2344562791522 7.6909e-05 deg
peri 232.8972130881286 7.8204e-05 deg
M 241.9737361947728 1.5028e-05 deg
tp 2457804.120045965992
(2017-Feb-19.62004597)
5.2162e-05 JED
period 1231.109177424642
3.37
7.7618e-06
2.125e-08
d
yr
n .2924192318613725 1.8436e-09 deg/d
Q 2.568045990222358 1.0794e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1337  
   data-arc span      10517 days (28.79 yr)  
   first obs. used      1986-08-28  
   last obs. used      2015-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54774  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:56:06  

Additional Information
 Earth MOID = .922592 au 
 Jupiter MOID = 2.82503 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
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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