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16476 (1990 QU4)
Classification: Main-belt Asteroid          SPK-ID: 2016476
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941301150276509 7.2053e-08  
a 2.285803774323551 1.6337e-08 AU
q 1.842060424683481 1.6073e-07 AU
i 6.584347556589058 7.5771e-06 deg
node 63.85064454112879 6.4097e-05 deg
peri 251.5422459318456 6.9969e-05 deg
M 327.1068494750095 3.2648e-05 deg
tp 2456915.834653918478
(2014-Sep-15.33465392)
0.00011522 JED
period 1262.283324885735
3.46
1.3533e-05
3.705e-08
d
yr
n .285197461538667 3.0575e-09 deg/d
Q 2.72954712396362 1.9508e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      23152 days (63.39 yr)  
   first obs. used      1949-12-22  
   last obs. used      2013-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60451  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 18:26:00  

Additional Information
 Earth MOID = .840231 AU 
 T_jup = 3.568 
[ 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 14.0 mag n/a MPO263494  

16476 (1990 QU4)          Discovered 1990-Aug-24 by Holt, H. E. at Palomar (675)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QU4 = 1994 WV11 = 1999 CJ22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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