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103176 (1999 XT234)
Classification: Main-belt Asteroid          SPK-ID: 2103176
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2295959743117696 3.7569e-08  
a 2.372894255955392 8.1048e-09 au
q 1.828087287320513 9.1263e-08 au
i 5.379728943413613 3.7082e-06 deg
node 149.9760928119708 3.659e-05 deg
peri 218.3518145167434 3.721e-05 deg
M 257.1318034674287 7.7508e-06 deg
tp 2459382.000076691531
(2021-Jun-16.50007669)
2.9817e-05 TDB
period 1335.106789448429
3.66
6.8403e-06
1.873e-08
d
yr
n .2696413521713319 1.3815e-09 deg/d
Q 2.917701224590273 9.9657e-09 au
  Orbit Determination Parameters
   # obs. used (total)      887  
   data-arc span      8554 days (23.42 yr)  
   first obs. used      1997-02-15  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:18  

Additional Information
 Earth MOID = .830329 au 
 Jupiter MOID = 2.54704 au 
 T_jup = 3.502 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.09   n/a E2021B55  
diameter diameter 4.179 km 1.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.044   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

103176 (1999 XT234)          Discovered 1999-Dec-03 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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