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103188 (1999 XT242)
Classification: Main-belt Asteroid          SPK-ID: 2103188
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1682556662474742 5.144e-08  
a 2.757736086521579 1.5966e-08 au
q 2.293731363949189 1.3968e-07 au
i 13.92787919187916 6.5185e-06 deg
node 19.3305210798773 1.6955e-05 deg
peri 40.78927865712669 2.3351e-05 deg
M 244.9544717088045 1.6305e-05 deg
tp 2459735.057862898621
(2022-Jun-04.55786290)
7.7768e-05 TDB
period 1672.736294073162
4.58
1.4526e-05
3.977e-08
d
yr
n .2152162306010527 1.869e-09 deg/d
Q 3.22174080909397 1.8652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1015  
   data-arc span      7508 days (20.56 yr)  
   first obs. used      1999-11-01  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:14  

Additional Information
 Earth MOID = 1.32172 au 
 Jupiter MOID = 2.26933 au 
 T_jup = 3.280 
[ 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 14.35   n/a E2021B55  
diameter diameter 3.481 km 0.655 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.231   0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103188 (1999 XT242)          Discovered 1999-Dec-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XT242 = 2001 FQ162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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