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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1507152580926087 2.8064e-08  
a 2.295716294367909 5.1984e-09 au
q 1.949716820554842 6.3985e-08 au
i .3786778856863128 3.2994e-06 deg
node 53.38153594701501 0.00051769 deg
peri 63.17665888860688 0.00051791 deg
M 56.12226655431451 1.3766e-05 deg
tp 2458802.434673890416
(2019-Nov-14.93467389)
4.8456e-05 TDB
period 1270.503167053017
3.48
4.3154e-06
1.181e-08
d
yr
n .2833523042961274 9.6243e-10 deg/d
Q 2.641715768180976 5.9819e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      17051 days (46.68 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49743  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:07:38  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1976-Apr-20 12:01 < 00:01 Eunom 0.0244673336411093 0.0244645792247711 0.0244700880952662 5.44206185824208 5.44206175281704 2442889.000833915 0.308745653399761 145.869357590564 32.0820207216523 -20.2778186681275 45987.1589846754 T 26 CATAB v2.0f-lin.ifort 2020-Nov-13 03:07:43 2020-Nov-13 03:07
2049-May-19 13:34 < 00:01 Eunom 0.00786744220890841 0.00786380233487196 0.00787108208303355 5.27279060089015 5.27279026249836 2469581.065046615 0.40769189512819 181.400197178101 31.3254325498604 0.348552099753254 6487.5055098483 T 26 CATAB v2.0f-lin.ifort 2020-Nov-13 03:07:43 2020-Nov-13 03:07

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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