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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06692994093664828 7.8176e-08  
a 2.708645554459024 2.4965e-08 au
q 2.527356067480766 2.074e-07 au
i 7.625512186802817 7.0051e-06 deg
node 25.42387831668025 4.2792e-05 deg
peri 320.2022834074559 6.7821e-05 deg
M 285.9813056049666 5.9006e-05 deg
tp 2457935.284709048526
(2017-Jun-30.78470905)
0.00026901 JED
period 1628.271023185683
4.46
2.2512e-05
6.163e-08
d
yr
n .221093414347979 3.0567e-09 deg/d
Q 2.889935041437281 2.6636e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1090  
   data-arc span      9064 days (24.82 yr)  
   first obs. used      1990-08-24  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53412  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:08:08  

Additional Information
 Earth MOID = 1.52564 au 
 Jupiter MOID = 2.38982 au 
 T_jup = 3.348 
[ 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
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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