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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2360566896901368 7.3329e-08  
a 2.567006480558562 1.65e-08 au
q 1.961047428344779 1.9563e-07 au
i 5.714488248064187 5.6125e-06 deg
node 29.04656813600879 6.267e-05 deg
peri 345.5588854089793 6.4553e-05 deg
M 281.1636939180169 2.0567e-05 deg
tp 2458929.474806914336
(2020-Mar-20.97480691)
8.8414e-05 TDB
period 1502.238453004162
4.11
1.4484e-05
3.966e-08
d
yr
n .2396423811945936 2.3105e-09 deg/d
Q 3.172965532772344 2.0395e-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 = .962061 au 
 Jupiter MOID = 2.28664 au 
 T_jup = 3.385 
[ 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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