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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2435428395801797 5.5103e-08  
a 2.363820924455875 1.3447e-08 au
q 1.788129264254846 1.3339e-07 au
i 9.546747301955815 6.8326e-06 deg
node 91.17564796168951 3.6356e-05 deg
peri 306.6415904093953 3.97e-05 deg
M 339.4901886859823 1.7016e-05 deg
tp 2457476.127448775061
(2016-Mar-28.62744877)
6.3028e-05 JED
period 1327.45646179661
3.63
1.1328e-05
3.101e-08
d
yr
n .2711953351093472 2.3142e-09 deg/d
Q 2.939512584656905 1.6722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      22123 days (60.57 yr)  
   first obs. used      1955-03-22  
   last obs. used      2015-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49351  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 16:36:25  

Additional Information
 Earth MOID = .813991 au 
 Jupiter MOID = 2.51225 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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