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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1416459573828688 6.3334e-08  
a 2.249183642851716 9.3935e-09 AU
q 1.930595872430096 1.4274e-07 AU
i 3.914668418838933 5.575e-06 deg
node 117.2477360567099 7.6847e-05 deg
peri 232.7031055464282 7.8162e-05 deg
M 125.289821362543 1.4932e-05 deg
tp 2456571.705613912096
(2013-Oct-06.20561391)
5.0554e-05 JED
period 1232.071187530603
3.37
7.7185e-06
2.113e-08
d
yr
n .2921909088074167 1.8305e-09 deg/d
Q 2.567771413273336 1.0724e-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 = .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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