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175181 (2005 ET162)
Classification: Main-belt Asteroid          SPK-ID: 2175181
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2127546569616729 4.1849e-08  
a 2.781724564551058 1.3446e-08 au
q 2.189899709058138 1.1299e-07 au
i 1.811340047837963 3.9833e-06 deg
node 45.27777047969746 0.00017464 deg
peri 244.9487724441005 0.0001752 deg
M 52.79779330656892 1.3016e-05 deg
tp 2458951.967673030417
(2020-Apr-12.46767303)
6.1161e-05 TDB
period 1694.609416524952
4.64
1.2286e-05
3.364e-08
d
yr
n .2124383332757783 1.5402e-09 deg/d
Q 3.373549420043978 1.6306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      471  
   data-arc span      6619 days (18.12 yr)  
   first obs. used      2002-10-05  
   last obs. used      2020-11-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53901  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:21  

Additional Information
 Earth MOID = 1.17245 au 
 Jupiter MOID = 1.81988 au 
 T_jup = 3.299 
[ 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 16.27   n/a E2021B55  
diameter diameter 2.493 km 0.266 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.098   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175181 (2005 ET162)          Discovered 2005-Mar-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2005 ET162 = 2002 TG141 = 2005 EF101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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