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233889 (2008 XH42)
Classification: Main-belt Asteroid          SPK-ID: 2233889
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271579492127134 4.3646e-08  
a 3.075695642800528 3.9409e-08 au
q 2.684596492459534 1.4074e-07 au
i 2.969391543907252 7.7983e-06 deg
node 336.3194118379902 9.3657e-05 deg
peri 258.6546100175185 0.00010191 deg
M 276.0525613496397 4.5608e-05 deg
tp 2459459.929007172895
(2021-Sep-02.42900717)
0.00025365 TDB
period 1970.214282190403
5.39
3.7866e-05
1.037e-07
d
yr
n .1827212416711175 3.5118e-09 deg/d
Q 3.466794793141521 4.442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      8507 days (23.29 yr)  
   first obs. used      1996-10-18  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:25:05  

Additional Information
 Earth MOID = 1.67531 au 
 Jupiter MOID = 1.5544 au 
 T_jup = 3.215 
[ 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 15.9   n/a MPO418249  
diameter diameter 3.512 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233889 (2008 XH42)          Discovered 2008-Dec-02 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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