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21050 Beck (1990 TG2)
Classification: Main-belt Asteroid          SPK-ID: 2021050
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 .1921547003518511 4.0594e-08  
a 2.7470914725829 1.324e-08 au
q 2.219224933829607 1.1144e-07 au
i 12.87528774230408 5.1216e-06 deg
node 9.381912857034994 1.6074e-05 deg
peri 27.57759752867161 1.9722e-05 deg
M 255.3500518396467 1.3493e-05 deg
tp 2459879.942274847048
(2022-Oct-27.44227485)
6.4439e-05 TDB
period 1663.060727734525
4.55
1.2023e-05
3.292e-08
d
yr
n .2164683429753066 1.5649e-09 deg/d
Q 3.274958011336192 1.5784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1093  
   data-arc span      12557 days (34.38 yr)  
   first obs. used      1987-01-03  
   last obs. used      2021-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52259  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:04:44  

Additional Information
 Earth MOID = 1.2323 au 
 Jupiter MOID = 2.22407 au 
 T_jup = 3.284 
[ 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 14.60   n/a E2021B10  
diameter diameter 3.496 km 0.547 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.229   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21050 Beck           Discovered 1990 Oct. 10 by L. D. Schmadel and F. Börngen at Tautenburg.
Hans G. Beck (b. 1930) studied astronomy and served for decades as head of the department for astronomical instruments of Carl Zeiss, Jena. This minor planet is being named on the occasion of his 75th birthday.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

Alternate Designations
 1990 TG2 = 1999 RS90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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