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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1416458945645583 6.7867e-08  
a 2.24918365435408 1.0446e-08 AU
q 1.930596023593114 1.5435e-07 AU
i 3.914668670091693 5.6278e-06 deg
node 117.2476685372266 9.1495e-05 deg
peri 232.7031494334827 9.2976e-05 deg
M 125.2898354360451 1.5984e-05 deg
tp 2456571.705562457368
(2013-Oct-06.20556246)
5.4674e-05 JED
period 1232.071196981853
3.37
8.5832e-06
2.35e-08
d
yr
n .2921909065660126 2.0355e-09 deg/d
Q 2.567771285115047 1.1926e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      10255 days (28.08 yr)  
   first obs. used      1986-08-28  
   last obs. used      2014-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54732  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:09:14  

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 (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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