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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202784682903296 5.4884e-08  
a 3.139257599069572 2.9373e-08 AU
q 2.502664242290487 1.7309e-07 AU
i 15.15910271493619 7.5176e-06 deg
node 137.7089841250578 2.3095e-05 deg
peri 238.6836174269707 2.9695e-05 deg
M 107.3287915341666 1.8442e-05 deg
tp 2456394.806940974800
(2013-Apr-12.30694097)
0.00010292 JED
period 2031.603059461067
5.56
2.8513e-05
7.806e-08
d
yr
n .1771999694150387 2.487e-09 deg/d
Q 3.775850955848658 3.5329e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      945  
   data-arc span      8884 days (24.32 yr)  
   first obs. used      1990-08-24  
   last obs. used      2014-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51406  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:20:44  

Additional Information
 Earth MOID = 1.53986 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 12.2 mag n/a MPO290524  

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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