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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2066246429427151 4.074e-08  
a 3.160206533580124 2.2533e-08 au
q 2.507229986953895 1.3603e-07 au
i 14.19621616019324 4.3319e-06 deg
node 63.49145339287882 1.5373e-05 deg
peri 327.4947981916516 1.8382e-05 deg
M 8.387721962155274 9.5754e-06 deg
tp 2459348.690615567347
(2021-May-14.19061557)
5.4404e-05 TDB
period 2051.97292821716
5.62
2.1946e-05
6.008e-08
d
yr
n .1754409110615231 1.8764e-09 deg/d
Q 3.813183080206353 2.7189e-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-Jul-09 10:32:50  

Additional Information
 Earth MOID = 1.52612 au 
 Jupiter MOID = 1.65603 au 
 T_jup = 3.125 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457312.5 (2015-Oct-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145455935663833 4.1565e-08  
q 2.477209147216658 1.4006e-07 au
tp 2457290.996408785791
(2015-Sep-25.49640879)
4.6212e-05 TDB
node 63.65613733326572 1.5338e-05 deg
peri 326.4906670789109 1.7975e-05 deg
i 14.23999455323683 4.345e-06 deg
  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-Jul-09 10:32:50  

Additional Information
 Jupiter MOID = 1.65603 au 
 T_jup = 3.125 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.727653241088608E-15 -5.782512065741975E-15 1.874694831101963E-13 -3.817659773222306E-15 4.981793168779568E-14 -3.06883297183155E-15
q -5.782512065741975E-15 1.961743492531464E-14 -6.563430763799865E-13 1.213222595120893E-14 -1.719086662783443E-13 1.172110830149403E-14
tp 1.874694831101963E-13 -6.563430763799865E-13 2.13550297894597E-9 -6.717895555452582E-12 4.487641682311157E-10 1.177299350716643E-12
node -3.817659773222306E-15 1.213222595120893E-14 -6.717895555452582E-12 2.35267238927724E-10 -2.291021191738998E-10 -8.339088641435349E-12
peri 4.981793168779568E-14 -1.719086662783443E-13 4.487641682311157E-10 -2.291021191738998E-10 3.23087112042666E-10 8.317965191382373E-12
i -3.06883297183155E-15 1.172110830149403E-14 1.177299350716643E-12 -8.339088641435349E-12 8.317965191382373E-12 1.887863356758678E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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