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382239 (2012 SR12)
Classification: Main-belt Asteroid          SPK-ID: 2382239
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0469138831092725 6.452e-08  
a 2.722281760435037 3.2762e-08 au
q 2.594568952135484 1.7996e-07 au
i 5.243318916490487 7.4017e-06 deg
node 20.54700281164874 6.2416e-05 deg
peri 192.1349315163111 8.8702e-05 deg
M 324.0326980074359 6.1923e-05 deg
tp 2458764.409225258246
(2019-Oct-07.90922526)
0.00028213 TDB
period 1640.58235741918
4.49
2.9616e-05
8.108e-08
d
yr
n .2194342748914601 3.9612e-09 deg/d
Q 2.849994568734592 3.4299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      8946 days (24.49 yr)  
   first obs. used      1994-10-06  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50888  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:35:29  

Additional Information
 Earth MOID = 1.58878 au 
 Jupiter MOID = 2.11243 au 
 T_jup = 3.350 
[ 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 16.1   n/a MPO434368  
diameter diameter 2.098 km 0.354 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

382239 (2012 SR12)          Discovered 2006-Mar-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-12-19

[ show close-approach data ]
Alternate Designations
 2012 SR12 = 1994 TY7 = 2006 FE33 = 2008 WA142 = 2008 WC56 = 2010 DD76 = 2010 KH35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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