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43181 (1999 XY206)
Classification: Main-belt Asteroid          SPK-ID: 2043181
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2067390920116599 4.0732e-08  
a 3.160764466816793 2.2783e-08 au
q 2.507310890884371 1.3604e-07 au
i 14.19568990942454 4.3317e-06 deg
node 63.49503531306973 1.5373e-05 deg
peri 327.4467505592474 1.8377e-05 deg
M 334.0373755652206 9.441e-06 deg
tp 2459348.524198677521
(2021-May-14.02419868)
5.4356e-05 TDB
period 2052.516364737083
5.62
2.2192e-05
6.076e-08
d
yr
n .1753944602756501 1.8964e-09 deg/d
Q 3.814218042749215 2.7493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      9006 days (24.66 yr)  
   first obs. used      1996-06-08  
   last obs. used      2021-02-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50883  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:16:58  

Additional Information
 Earth MOID = 1.52581 au 
 Jupiter MOID = 1.65421 au 
 T_jup = 3.125 
[ 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 13.54   n/a MPCxxxxx  
diameter diameter 12.767 km 3.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 17.059 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.039   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

43181 (1999 XY206)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

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