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JPL Small-Body Database Browser
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71197 (1999 XE234)
Classification: Main-belt Asteroid          SPK-ID: 2071197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09376622643158351 5.1221e-08  
a 2.750160910407206 1.86e-08 au
q 2.492288699758674 1.3943e-07 au
i 7.215552369531677 7.2115e-06 deg
node 170.1572244925493 3.7764e-05 deg
peri 251.5738768476471 5.492e-05 deg
M 91.10339020771447 3.7192e-05 deg
tp 2458178.932014947146
(2018-Mar-01.43201495)
0.00017265 TDB
period 1665.848814989285
4.56
1.69e-05
4.627e-08
d
yr
n .2161060456151392 2.1923e-09 deg/d
Q 3.008033121055738 2.0344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      8824 days (24.16 yr)  
   first obs. used      1995-02-01  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5814  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:53:52  

Additional Information
 Earth MOID = 1.51569 au 
 Jupiter MOID = 2.28316 au 
 T_jup = 3.328 
[ 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 15.3   n/a MPO280201  
diameter diameter 5.078 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71197 (1999 XE234)          Discovered 1999-Dec-04 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XE234 = 2001 FE154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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