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181212 (2005 SW190)
Classification: Outer Main-belt Asteroid          SPK-ID: 2181212
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1339060413417174 3.9385e-08  
a 3.22826618430996 2.9851e-08 au
q 2.795981839171682 1.341e-07 au
i 5.395369570827919 5.1672e-06 deg
node 46.06952201182229 4.5509e-05 deg
peri 272.1599392607998 4.9429e-05 deg
M 268.027797692198 2.107e-05 deg
tp 2459741.760728192386
(2022-Jun-11.26072819)
0.00012729 TDB
period 2118.616900105798
5.80
2.9385e-05
8.045e-08
d
yr
n .1699221789375996 2.3568e-09 deg/d
Q 3.660550529448238 3.3848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      6591 days (18.05 yr)  
   first obs. used      2003-04-06  
   last obs. used      2021-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:21  

Additional Information
 Earth MOID = 1.78782 au 
 Jupiter MOID = 1.66744 au 
 T_jup = 3.166 
[ 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 14.83   n/a E2021B55  
diameter diameter 5.541 km 0.521 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181212 (2005 SW190)          Discovered 2005-Sep-29 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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