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10253 Westerwald (2116 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2010253
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1507152591247954 2.8284e-08  
a 2.295716294197837 5.2438e-09 au
q 1.949716818040796 6.457e-08 au
i .3786776738568124 3.3337e-06 deg
node 53.38151659989476 0.00052079 deg
peri 63.17667823217372 0.00052101 deg
M 56.12226670637968 1.3794e-05 deg
tp 2458802.434673375761
(2019-Nov-14.93467338)
4.855e-05 TDB
period 1270.503166911834
3.48
4.3531e-06
1.192e-08
d
yr
n .2833523043276144 9.7084e-10 deg/d
Q 2.641715770354879 6.0341e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1656  
   data-arc span      17023 days (46.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4929  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:18:59  

Additional Information
 Earth MOID = .966039 au 
 Jupiter MOID = 2.44087 au 
 T_jup = 3.580 
[ 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 15.2   n/a MPO350884  
diameter diameter 2.270 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.313   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10253 Westerwald           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
North of the Lahn river lies the Westerwald, a low mountain range with some volcanoes, blending into the "Siebengebirge", a range of seven extinct volcanic mountains.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

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Alternate Designations
 2116 T-2 = 1992 AN3 = 1992 CE4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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