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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 ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502474110758165 2.7803e-08  
a 2.296399913215481 5.1014e-09 au
q 1.951371771460125 6.3221e-08 au
i .3787573270699791 3.197e-06 deg
node 53.39464151631172 0.00050264 deg
peri 63.20662100841322 0.00050282 deg
M 168.2979970472703 1.2811e-05 deg
tp 2458802.281517191749
(2019-Nov-14.78151719)
4.4616e-05 TDB
period 1271.070705320909
3.48
4.2355e-06
1.16e-08
d
yr
n .2832257863335071 9.4377e-10 deg/d
Q 2.641428054970837 5.8679e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1747  
   data-arc span      17450 days (47.78 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49896  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:18:29  

Additional Information
 Earth MOID = .968113 au 
 Jupiter MOID = 2.44022 au 
 T_jup = 3.579 
[ 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 15.22   n/a E2021B10  
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

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