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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2016374536424301 5.517e-08  
a 3.139105565461445 2.8337e-08 AU
q 2.506144312527018 1.7325e-07 AU
i 15.14671819165073 7.5209e-06 deg
node 137.7180388395893 2.3742e-05 deg
peri 238.6610051501347 3.049e-05 deg
M 72.036045659732 1.8663e-05 deg
tp 2456394.005501585146
(2013-Apr-11.50550159)
0.0001047 JED
period 2031.455476062453
5.56
2.7507e-05
7.531e-08
d
yr
n .1772128428321668 2.3996e-09 deg/d
Q 3.772066818395872 3.4051e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      8608 days (23.57 yr)  
   first obs. used      1990-08-24  
   last obs. used      2014-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5018  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:56:33  

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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