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16506 (1990 UH1)
Classification: Main-belt Asteroid          SPK-ID: 2016506
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2437106316653772 8.0908e-08  
a 2.36358836880274 1.5256e-08 AU
q 1.787556754444886 1.8944e-07 AU
i 9.547855687997437 7.644e-06 deg
node 91.17894861105532 4.1045e-05 deg
peri 306.6717547327784 4.4029e-05 deg
M 230.9899474062511 1.965e-05 deg
tp 2457476.138766997915
(2016-Mar-28.63876700)
7.5061e-05 JED
period 1327.260571379273
3.63
1.2851e-05
3.518e-08
d
yr
n .2712353608349055 2.6261e-09 deg/d
Q 2.939619983160594 1.8974e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      21649 days (59.27 yr)  
   first obs. used      1955-03-22  
   last obs. used      2014-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50809  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:31:44  

Additional Information
 Earth MOID = .814354 AU 
 T_jup = 3.491 
[ 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 MPO302166  

16506 (1990 UH1)          Discovered 1990-Oct-20 by McNaught, R. H. at Siding Spring
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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