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43239 (2000 AK238)
Classification: Main-belt Asteroid          SPK-ID: 2043239
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236692918554319 3.9868e-08  
a 3.034745255987957 2.1955e-08 au
q 2.355965933619499 1.1719e-07 au
i .9745154656257807 4.8224e-06 deg
node 238.8946716679514 0.00026947 deg
peri 21.96211319199321 0.00026975 deg
M 177.6842584644077 1.6527e-05 deg
tp 2458247.422444919562
(2018-May-08.92244492)
8.1558e-05 TDB
period 1930.997842995115
5.29
2.0955e-05
5.737e-08
d
yr
n .1864321088218382 2.0231e-09 deg/d
Q 3.713524578356414 2.6865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      768  
   data-arc span      8599 days (23.54 yr)  
   first obs. used      1997-06-25  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57984  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:17:44  

Additional Information
 Earth MOID = 1.33888 au 
 Jupiter MOID = 1.36623 au 
 T_jup = 3.203 
[ 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 14.90   n/a MPCxxxxx  
diameter diameter 6.550 km 0.708 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 15.825 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Fatka, P.; Vokrouhlicky, D.; Scheeres, D.J.; et al. (2018) Icarus 304, 110-126.]
geometric albedo albedo 0.045   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43239 (2000 AK238)          Discovered 2000-Jan-06 by Spacewatch at Kitt Peak
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 AK238 = 1997 MF = 1998 SW47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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