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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2434450617232428 5.5113e-08  
a 2.363531917761254 1.3439e-08 au
q 1.788141744157011 1.3338e-07 au
i 9.547029156601504 6.8328e-06 deg
node 91.17345475066931 3.6355e-05 deg
peri 306.6374790174783 3.9702e-05 deg
M 33.73946549281729 1.723e-05 deg
tp 2457476.112616786286
(2016-Mar-28.61261679)
6.304e-05 JED
period 1327.213021986668
3.63
1.1319e-05
3.099e-08
d
yr
n .2712450782475944 2.3134e-09 deg/d
Q 2.938922091365497 1.671e-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 = .813785 au 
 Jupiter MOID = 2.5114 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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