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212331 (2005 SK122)
Classification: Main-belt Asteroid          SPK-ID: 2212331
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 .2106682054274628 4.6694e-08  
a 3.106554551424177 3.1362e-08 au
q 2.452102279013129 1.5859e-07 au
i 18.17749874152243 8.8559e-06 deg
node 5.233489880564815 1.551e-05 deg
peri 273.2336266441088 2.6568e-05 deg
M 315.3151684349698 2.1886e-05 deg
tp 2459248.741580564699
(2021-Feb-03.24158056)
0.00012249 TDB
period 1999.93970824832
5.48
3.0285e-05
8.292e-08
d
yr
n .1800054264212354 2.7258e-09 deg/d
Q 3.761006823835225 3.7969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      333  
   data-arc span      6300 days (17.25 yr)  
   first obs. used      2003-01-28  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5658  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:44:58  

Additional Information
 Earth MOID = 1.51938 au 
 Jupiter MOID = 1.8295 au 
 T_jup = 3.110 
[ 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 14.9   n/a MPO475747  
diameter diameter 6.423 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212331 (2005 SK122)          Discovered 2005-Sep-29 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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