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7286 (1990 QZ4)
Classification: Main-belt Asteroid          SPK-ID: 2007286
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2016374925462485 6.287e-08  
a 3.139105589875867 3.056e-08 AU
q 2.506144209895385 1.9604e-07 AU
i 15.14672466474554 7.968e-06 deg
node 137.7180364269192 2.6015e-05 deg
peri 238.6610256497367 3.2859e-05 deg
M 72.03602760411584 1.9915e-05 deg
tp 2456394.005598729487
(2013-Apr-11.50559873)
0.00011153 JED
period 2031.455499761948
5.56
2.9665e-05
8.122e-08
d
yr
n .177212840764755 2.5878e-09 deg/d
Q 3.772066969856349 3.6722e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      8601 days (23.55 yr)  
   first obs. used      1990-08-24  
   last obs. used      2014-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50497  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:50:25  

Additional Information
 Earth MOID = 1.54188 AU 
 T_jup = 3.126 
[ 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 12.1 mag n/a MPO250281  

7286 (1990 QZ4)          Discovered 1990-Aug-24 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 QZ4 = 1991 XE3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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