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160418 (2005 AR8)
Classification: Main-belt Asteroid          SPK-ID: 2160418
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155960209777335 6.3998e-08  
a 3.156610512986304 4.5953e-08 au
q 2.476057846609975 1.8979e-07 au
i 26.61206456991833 6.0101e-06 deg
node 298.7732249857753 1.3288e-05 deg
peri 308.8864908426775 1.959e-05 deg
M 185.323717544293 1.5548e-05 deg
tp 2460194.442736793890
(2023-Sep-06.94273679)
9.7901e-05 TDB
period 2048.471493756075
5.61
4.4731e-05
1.225e-07
d
yr
n .1757407906809112 3.8376e-09 deg/d
Q 3.837163179362634 5.586e-08 au
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      9458 days (25.89 yr)  
   first obs. used      1994-01-09  
   last obs. used      2019-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48241  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 12:23:43  

Additional Information
 Earth MOID = 1.53077 au 
 Jupiter MOID = 1.63481 au 
 T_jup = 3.008 
[ 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 14.8   n/a MPO506647  
diameter diameter 6.635 km 0.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160418 (2005 AR8)          Discovered 2005-Jan-06 by CSS at Catalina
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

[ show close-approach data ]
Alternate Designations
 2005 AR8 = 1994 AM11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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