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JPL Small-Body Database Browser
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(2012 UW9)
Classification: Apollo [NEO]          SPK-ID: 3612170
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2456218.5 (2012-Oct-18.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4925170743367918 0.015236  
a 1.791352789645608 0.048701 au
q .9090809545843028 0.0026924 au
i 6.646983334850656 0.16001 deg
node 24.86502280717747 0.040184 deg
peri 53.27435872036887 0.19914 deg
M 341.9323654133534 0.92091 deg
tp 2456262.451015210329
(2012-Nov-30.95101521)
0.48587 TDB
period 875.7297697072294
2.40
35.712
0.09777
d
yr
n .4110857166821608 0.016764 deg/d
Q 2.673624624706914 0.072687 au
  Orbit Determination Parameters
   # obs. used (total)      14  
   data-arc span      1 day  
   first obs. used      2012-10-17  
   last obs. used      2012-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .43417  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:48:27  

Additional Information
 Earth MOID = .0203308 au 
 Jupiter MOID = 2.65458 au 
 T_jup = 3.919 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.7   n/a MPO240173  

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