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187466 (2005 YR171)
Classification: Main-belt Asteroid          SPK-ID: 2187466
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3411595849760602 7.5341e-08  
a 2.553558262621018 1.9985e-08 au
q 1.682387385533042 1.9886e-07 au
i 5.736382694002707 6.1436e-06 deg
node 154.0719275371144 5.9484e-05 deg
peri 185.5640533056253 6.0369e-05 deg
M 300.4709062502432 9.3561e-06 deg
tp 2459446.958530149295
(2021-Aug-20.45853015)
3.8678e-05 TDB
period 1490.448875750084
4.08
1.7498e-05
4.791e-08
d
yr
n .2415379727928113 2.8356e-09 deg/d
Q 3.424729139708995 2.6804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      14532 days (39.79 yr)  
   first obs. used      1980-08-04  
   last obs. used      2020-05-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53146  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:55:32  

Additional Information
 Earth MOID = .671918 au 
 Jupiter MOID = 1.98617 au 
 T_jup = 3.348 
[ 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 16.02   n/a E2021B55  
diameter diameter 2.181 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.162   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

187466 (2005 YR171)          Discovered 2005-Dec-22 by CSS at Catalina
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2005 YR171 = 1980 PS4 = 2005 WD207 = 2005 WP124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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