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JPL Small-Body Database Browser
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71194 (1999 XH231)
Classification: Main-belt Asteroid          SPK-ID: 2071194
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0908151322215503 4.6855e-08  
a 3.109003679855408 2.8379e-08 au
q 2.826659099592053 1.4444e-07 au
i 18.18223955000573 6.4889e-06 deg
node 65.97287274160941 2.0114e-05 deg
peri 45.85364798945732 5.0671e-05 deg
M 206.9263401271511 4.4038e-05 deg
tp 2459451.889414479577
(2021-Aug-25.38941448)
0.00024646 TDB
period 2002.305226563753
5.48
2.7416e-05
7.506e-08
d
yr
n .1797927684670796 2.4617e-09 deg/d
Q 3.391348260118763 3.0956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      999  
   data-arc span      7155 days (19.59 yr)  
   first obs. used      1998-11-11  
   last obs. used      2018-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54895  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:13:50  

Additional Information
 Earth MOID = 1.87084 au 
 Jupiter MOID = 1.96532 au 
 T_jup = 3.136 
[ 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 13.4   n/a MPO351344  
diameter diameter 11.696 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71194 (1999 XH231)          Discovered 1999-Dec-07 by CSS at Catalina
Reference: 20031109/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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