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181205 (2005 SR171)
Classification: Outer Main-belt Asteroid          SPK-ID: 2181205
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04239026232064139 4.342e-08  
a 3.215533080813448 3.1964e-08 au
q 3.079225790017066 1.3075e-07 au
i 3.643428574046956 4.4041e-06 deg
node 308.7705611822536 9.9522e-05 deg
peri 162.7841384856355 0.0001338 deg
M 133.5070038679566 8.764e-05 deg
tp 2458419.448899577179
(2018-Oct-27.94889958)
0.00051213 TDB
period 2106.094721669519
5.77
3.1403e-05
8.598e-08
d
yr
n .1709324829011608 2.5487e-09 deg/d
Q 3.35184037160983 3.3319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      6701 days (18.35 yr)  
   first obs. used      2002-02-11  
   last obs. used      2020-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53456  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:38  

Additional Information
 Earth MOID = 2.09591 au 
 Jupiter MOID = 1.70073 au 
 T_jup = 3.186 
[ 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 15.69   n/a MPCxxxxx  
diameter diameter 5.377 km 1.867 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181205 (2005 SR171)          Discovered 2005-Sep-29 by Spacewatch at Kitt Peak
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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