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103191 (1999 XE243)
Classification: Main-belt Asteroid          SPK-ID: 2103191
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766288004098808 4.5204e-08  
a 2.809072678993975 1.6507e-08 au
q 2.312909541439099 1.2588e-07 au
i 12.62433786529873 7.1741e-06 deg
node 357.9766839850857 2.337e-05 deg
peri 97.23680324224128 3.306e-05 deg
M 174.4442703722074 2.0828e-05 deg
tp 2458367.208216755599
(2018-Sep-05.70821676)
9.7986e-05 TDB
period 1719.66119224159
4.71
1.5158e-05
4.15e-08
d
yr
n .209343562339008 1.8453e-09 deg/d
Q 3.305235816548851 1.9423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      10544 days (28.87 yr)  
   first obs. used      1991-03-14  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54859  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:13  

Additional Information
 Earth MOID = 1.36946 au 
 Jupiter MOID = 1.98606 au 
 T_jup = 3.264 
[ 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 14.9   n/a MPO469042  
diameter diameter 3.126 km 0.676 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.261   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103191 (1999 XE243)          Discovered 1999-Dec-03 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XE243 = 1998 RE33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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