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186357 (2002 GW12)
Classification: Main-belt Asteroid          SPK-ID: 2186357
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07209104074605095 4.0833e-08  
a 3.169958369500986 3.3848e-08 au
q 2.941432771522005 1.4035e-07 au
i 8.918641844695911 5.8343e-06 deg
node 197.8568977641035 2.9114e-05 deg
peri 89.69976813535803 5.1067e-05 deg
M 27.78458008575814 4.3152e-05 deg
tp 2459041.396365062633
(2020-Jul-10.89636506)
0.00024625 TDB
period 2061.478287620822
5.64
3.3018e-05
9.04e-08
d
yr
n .1746319629761808 2.7971e-09 deg/d
Q 3.398483967479966 3.6289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      6269 days (17.16 yr)  
   first obs. used      2002-03-23  
   last obs. used      2019-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54863  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:50:56  

Additional Information
 Earth MOID = 1.94184 au 
 Jupiter MOID = 1.73818 au 
 T_jup = 3.180 
[ 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 15.07   n/a MPCxxxxx  
diameter diameter 6.294 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

186357 (2002 GW12)          Discovered 2002-Apr-14 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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