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11880 (1990 QQ4)
Classification: Main-belt Asteroid          SPK-ID: 2011880
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06576233954126916 7.8326e-08  
a 2.711434862992756 2.961e-08 AU
q 2.533124562888591 2.0886e-07 AU
i 7.619527761516723 9.2663e-06 deg
node 25.46365419871791 4.889e-05 deg
peri 319.7647485747282 8.1218e-05 deg
M 153.8050656386091 6.6585e-05 deg
tp 2456303.768687242151
(2013-Jan-11.26868724)
0.00030066 JED
period 1630.786811548697
4.46
2.6714e-05
7.314e-08
d
yr
n .2207523371237725 3.6161e-09 deg/d
Q 2.88974516309692 3.1558e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      8828 days (24.17 yr)  
   first obs. used      1990-08-24  
   last obs. used      2014-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54687  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:15:58  

Additional Information
 Earth MOID = 1.53265 AU 
 T_jup = 3.347 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO279641  

11880 (1990 QQ4)          Discovered 1990-Aug-24 by Holt, H. E. at Palomar (675)
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QQ4 = 1986 UL = 1998 KB25 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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