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243370 (2008 WA112)
Classification: Main-belt Asteroid          SPK-ID: 2243370
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09731760694217287 6.4301e-08  
a 2.362570613305353 2.2582e-08 au
q 2.132650894986575 1.5151e-07 au
i 5.82888075997112 6.3658e-06 deg
node 58.63855266048104 7.238e-05 deg
peri 170.4712617105835 8.4013e-05 deg
M 267.360281472965 4.5138e-05 deg
tp 2459341.826768832869
(2021-May-07.32676883)
0.00016679 TDB
period 1326.403390830398
3.63
1.9017e-05
5.207e-08
d
yr
n .2714106451240457 3.8913e-09 deg/d
Q 2.592490331624131 2.478e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      9591 days (26.26 yr)  
   first obs. used      1993-10-20  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5661  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:20:01  

Additional Information
 Earth MOID = 1.12243 au 
 Jupiter MOID = 2.38825 au 
 T_jup = 3.537 
[ 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 16.7   n/a MPO454785  
diameter diameter 2.908 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19.3603 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.044   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243370 (2008 WA112)          Discovered 2008-Nov-30 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2008 WA112 = 1993 UE10 = 2008 WV124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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