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173303 (1999 UH16)
Classification: Main-belt Asteroid          SPK-ID: 2173303
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .235841080570029 7.3329e-08  
a 2.565604903513088 1.5987e-08 au
q 1.960529870752796 1.9531e-07 au
i 5.713965666304754 5.6128e-06 deg
node 29.02181687466747 6.2693e-05 deg
peri 345.706328701689 6.4589e-05 deg
M 16.95469988581279 2.1388e-05 deg
tp 2458929.807930083675
(2020-Mar-21.30793008)
8.8637e-05 TDB
period 1501.008295120105
4.11
1.403e-05
3.841e-08
d
yr
n .2398387811515687 2.2417e-09 deg/d
Q 3.17067993627338 1.9757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      6817 days (18.66 yr)  
   first obs. used      1999-09-14  
   last obs. used      2018-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57353  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:24:28  

Additional Information
 Earth MOID = .962361 au 
 Jupiter MOID = 2.29211 au 
 T_jup = 3.386 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO449898  

173303 (1999 UH16)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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