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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941300861288637 5.3627e-08  
a 2.285803763746656 1.3418e-08 AU
q 1.842060482216837 1.2546e-07 AU
i 6.584331610996961 6.5767e-06 deg
node 63.85076593960483 5.349e-05 deg
peri 251.5420805371105 5.6875e-05 deg
M 327.1068982180144 1.7714e-05 deg
tp 2456915.834482208289
(2014-Sep-15.33448221)
6.2163e-05 JED
period 1262.283316124459
3.46
1.1114e-05
3.043e-08
d
yr
n .28519746351817 2.5111e-09 deg/d
Q 2.729547045276475 1.6022e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      931  
   data-arc span      23573 days (64.54 yr)  
   first obs. used      1949-12-22  
   last obs. used      2014-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5631  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:36:36  

Additional Information
 Earth MOID = .84023 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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