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103100 (1999 XU173)
Classification: Main-belt Asteroid          SPK-ID: 2103100
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038997737142792 4.8136e-08  
a 2.738585034834173 1.7362e-08 au
q 2.180188165934174 1.3188e-07 au
i 18.44881467164593 5.6217e-06 deg
node 89.71666582155947 1.4415e-05 deg
peri 6.965563067737496 1.8798e-05 deg
M 193.8466910633254 1.4433e-05 deg
tp 2459764.501597478552
(2022-Jul-04.00159748)
7.0585e-05 TDB
period 1655.342146674334
4.53
1.5742e-05
4.31e-08
d
yr
n .2174776983255445 2.0681e-09 deg/d
Q 3.296981903734173 2.0902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      674  
   data-arc span      14588 days (39.94 yr)  
   first obs. used      1980-10-05  
   last obs. used      2020-09-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:43  

Additional Information
 Earth MOID = 1.19783 au 
 Jupiter MOID = 1.92544 au 
 T_jup = 3.247 
[ 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 14.81   n/a E2021B55  
diameter diameter 7.070 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103100 (1999 XU173)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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