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43179 (1999 XL204)
Classification: Main-belt Asteroid          SPK-ID: 2043179
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07713479361700869 3.6712e-08  
a 3.140058051232018 2.1659e-08 au
q 2.89785032150481 1.1075e-07 au
i 17.09667039054333 4.34e-06 deg
node 74.2696453335757 1.4597e-05 deg
peri 235.0342005081318 3.5022e-05 deg
M 72.0449861836682 3.1343e-05 deg
tp 2458793.770002412876
(2019-Nov-06.27000241)
0.00017727 TDB
period 2032.380140348436
5.56
2.1028e-05
5.757e-08
d
yr
n .1771322169770271 1.8327e-09 deg/d
Q 3.382265780959226 2.333e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1742  
   data-arc span      8181 days (22.40 yr)  
   first obs. used      1998-10-12  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46979  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:16:57  

Additional Information
 Earth MOID = 1.9144 au 
 Jupiter MOID = 1.80946 au 
 T_jup = 3.138 
[ 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 13.36   n/a E2021B10  
diameter diameter 11.687 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43179 (1999 XL204)          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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