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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941000032870344 5.3363e-08  
a 2.285722621723585 1.3384e-08 AU
q 1.842063853333788 1.2497e-07 AU
i 6.584154445355733 6.5129e-06 deg
node 63.84744768093611 5.3043e-05 deg
peri 251.528139336437 5.6415e-05 deg
M 24.15903113952365 1.7446e-05 deg
tp 2456915.794671810520
(2014-Sep-15.29467181)
6.1134e-05 JED
period 1262.216103456463
3.46
1.1086e-05
3.035e-08
d
yr
n .2852126502063894 2.5051e-09 deg/d
Q 2.729381390113382 1.5982e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      23583 days (64.57 yr)  
   first obs. used      1949-12-22  
   last obs. used      2014-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56253  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:27:35  

Additional Information
 Earth MOID = .842085 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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