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102542 (1999 UT12)
Classification: Main-belt Asteroid          SPK-ID: 2102542
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2104008155803865 6.5165e-08  
a 2.781805552257611 1.5995e-08 au
q 2.196511395276562 1.7687e-07 au
i 7.334250314299741 5.5953e-06 deg
node 209.2430967171525 3.8147e-05 deg
peri 171.8098182026983 3.9616e-05 deg
M 152.4444472392294 1.2814e-05 deg
tp 2458282.874784315811
(2018-Jun-13.37478432)
5.7093e-05 TDB
period 1694.683422879221
4.64
1.4616e-05
4.002e-08
d
yr
n .2124290561527826 1.8321e-09 deg/d
Q 3.367099709238659 1.936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      673  
   data-arc span      10753 days (29.44 yr)  
   first obs. used      1990-11-17  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:54:08  

Additional Information
 Earth MOID = 1.19984 au 
 Jupiter MOID = 2.095 au 
 T_jup = 3.288 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.39   n/a E2021B55  
diameter diameter 3.564 km 1.786 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102542 (1999 UT12)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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