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173993 (2001 XG198)
Classification: Outer Main-belt Asteroid          SPK-ID: 2173993
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05652318528982844 4.9482e-08  
a 3.251372244192927 3.1377e-08 au
q 3.067594328388205 1.6243e-07 au
i 6.300499549154345 5.3774e-06 deg
node 122.7969509702454 5.0059e-05 deg
peri 91.04063889384503 6.8925e-05 deg
M 317.8517950202928 4.7999e-05 deg
tp 2459251.211959126296
(2021-Feb-05.71195913)
0.00028611 TDB
period 2141.403301253791
5.86
3.0998e-05
8.487e-08
d
yr
n .1681140585658106 2.4336e-09 deg/d
Q 3.435150159997649 3.3151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      6623 days (18.13 yr)  
   first obs. used      2001-12-14  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6137  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:14:33  

Additional Information
 Earth MOID = 2.0698 au 
 Jupiter MOID = 1.56667 au 
 T_jup = 3.169 
[ 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 14.8   n/a MPO436864  
diameter diameter 7.711 km 0.535 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173993 (2001 XG198)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 XG198 = 2003 FF88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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