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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2066246429174188 4.0721e-08  
a 3.160206533589387 2.2515e-08 au
q 2.507229987041186 1.3595e-07 au
i 14.19621615810877 4.3319e-06 deg
node 63.49145332919687 1.5369e-05 deg
peri 327.494798255409 1.8378e-05 deg
M 8.387721954470972 9.571e-06 deg
tp 2459348.690615610937
(2021-May-14.19061561)
5.4379e-05 TDB
period 2051.972928226182
5.62
2.1929e-05
6.004e-08
d
yr
n .1754409110607518 1.8749e-09 deg/d
Q 3.813183080137587 2.7167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1299  
   data-arc span      9183 days (25.14 yr)  
   first obs. used      1996-06-08  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50808  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 23:29:40  

Additional Information
 Earth MOID = 1.52612 au 
 Jupiter MOID = 1.65603 au 
 T_jup = 3.125 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457313.5 (2015-Oct-18.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145445472267757 4.1546e-08  
q 2.477209181605415 1.3998e-07 au
tp 2457290.996505639647
(2015-Sep-25.49650564)
4.6207e-05 TDB
node 63.65612734485454 1.5335e-05 deg
peri 326.4907064331242 1.7972e-05 deg
i 14.23999926441213 4.3449e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1299  
   data-arc span      9183 days (25.14 yr)  
   first obs. used      1996-06-08  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50808  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 23:29:40  

Additional Information
 Jupiter MOID = 1.65603 au 
 T_jup = 3.125 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.726072108523843E-15 -5.776560997883278E-15 1.883008033825895E-13 -3.818453915728458E-15 4.99302615141952E-14 -3.065545282795906E-15
q -5.776560997883278E-15 1.959504079632258E-14 -6.594680411244677E-13 1.212887398991265E-14 -1.723245168652946E-13 1.170884926896533E-14
tp 1.883008033825895E-13 -6.594680411244677E-13 2.135083598002714E-9 -6.729963429572127E-12 4.487213415425193E-10 1.175238096141762E-12
node -3.818453915728458E-15 1.212887398991265E-14 -6.729963429572127E-12 2.35152863515005E-10 -2.289934225824027E-10 -8.342811961381277E-12
peri 4.99302615141952E-14 -1.723245168652946E-13 4.487213415425193E-10 -2.289934225824027E-10 3.229769426032327E-10 8.3212830890051E-12
i -3.065545282795906E-15 1.170884926896533E-14 1.175238096141762E-12 -8.342811961381277E-12 8.3212830890051E-12 1.887852168123174E-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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