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442473 (2011 US305)
Classification: Main-belt Asteroid          SPK-ID: 2442473
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1233235014422731 8.7364e-08  
a 3.183787996609361 7.0294e-08 au
q 2.791152113017614 2.527e-07 au
i 10.48855123479482 8.3452e-06 deg
node 242.1254880252819 3.1016e-05 deg
peri 164.5832505421775 3.8885e-05 deg
M 175.1587036838223 2.5807e-05 deg
tp 2457990.912743460790
(2017-Aug-25.41274346)
0.0001367 TDB
period 2074.983456204262
5.68
6.872e-05
1.881e-07
d
yr
n .1734953591671246 5.7459e-09 deg/d
Q 3.576423880201107 7.8963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      5355 days (14.66 yr)  
   first obs. used      2005-08-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47933  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:53:58  

Additional Information
 Earth MOID = 1.80297 au 
 Jupiter MOID = 1.80076 au 
 T_jup = 3.161 
[ 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 15.6   n/a MPO437720  

442473 (2011 US305)          Discovered 2010-Jun-22 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

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