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117235 (2004 SM12)
Classification: Main-belt Asteroid          SPK-ID: 2117235
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1983441357695153 4.4531e-08  
a 3.176581847347253 3.3129e-08 au
q 2.546525466134032 1.4986e-07 au
i 26.51467067721338 7.7522e-06 deg
node 317.7094815986264 1.0584e-05 deg
peri 309.85394247545 2.3645e-05 deg
M 307.1586320770787 2.3732e-05 deg
tp 2459304.035892301000
(2021-Mar-30.53589230)
0.0001378 TDB
period 2067.942703295536
5.66
3.2351e-05
8.857e-08
d
yr
n .1740860611980656 2.7234e-09 deg/d
Q 3.806638228560474 3.97e-08 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      7503 days (20.54 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50006  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:10:00  

Additional Information
 Earth MOID = 1.59814 au 
 Jupiter MOID = 1.70832 au 
 T_jup = 3.009 
[ 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 14.1   n/a MPO302617  
diameter diameter 8.566 km 0.285 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117235 (2004 SM12)          Discovered 2004-Sep-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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