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185565 (2008 AR42)
Classification: Main-belt Asteroid          SPK-ID: 2185565
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .101629871903991 7.2839e-08  
a 3.054828911540185 2.9809e-08 au
q 2.744367040571748 2.2472e-07 au
i 8.934513401714995 5.6763e-06 deg
node 282.2503164738222 4.7823e-05 deg
peri 233.065475725322 5.9465e-05 deg
M 84.47360167341897 3.3427e-05 deg
tp 2458542.888135524443
(2019-Feb-28.38813552)
0.00018041 TDB
period 1950.198262506885
5.34
2.8545e-05
7.815e-08
d
yr
n .1845966161087835 2.702e-09 deg/d
Q 3.365290782508622 3.2839e-08 au
  Orbit Determination Parameters
   # obs. used (total)      330  
   data-arc span      9973 days (27.30 yr)  
   first obs. used      1992-01-10  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66387  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:06:43  

Additional Information
 Earth MOID = 1.76649 au 
 Jupiter MOID = 1.73914 au 
 T_jup = 3.209 
[ 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 15.1   n/a MPO297180  
diameter diameter 4.944 km 0.525 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

185565 (2008 AR42)          Discovered 2008-Jan-10 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 2008 AR42 = 1998 FZ106 = 2006 UK190 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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