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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1939283114887045 5.0607e-08  
a 2.28543645894324 1.1923e-08 au
q 1.842225625445653 1.1836e-07 au
i 6.584272944008136 5.9574e-06 deg
node 63.8443395846417 4.7208e-05 deg
peri 251.4925293669773 5.0007e-05 deg
M 138.3145597383127 1.4968e-05 deg
tp 2456915.638666336723
(2014-Sep-15.13866634)
5.2094e-05 JED
period 1261.979074719421
3.46
9.8759e-06
2.704e-08
d
yr
n .2852662197113212 2.2324e-09 deg/d
Q 2.728647292440826 1.4236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1059  
   data-arc span      24102 days (65.99 yr)  
   first obs. used      1949-12-22  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55448  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:33:58  

Additional Information
 Earth MOID = .839431 au 
 Jupiter MOID = 2.56097 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
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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