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30837 Steinheil (1991 AW2)
Classification: Main-belt Asteroid          SPK-ID: 2030837
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1445549471197755 3.5038e-08  
a 3.137469768464186 1.6127e-08 au
q 2.683932991993951 1.1162e-07 au
i 15.36103477810587 3.439e-06 deg
node 130.0200832363951 1.5613e-05 deg
peri 330.1414828126145 2.0712e-05 deg
M 202.7802016735007 1.4758e-05 deg
tp 2460282.987233594087
(2023-Dec-04.48723359)
8.7338e-05 TDB
period 2029.867786950858
5.56
1.5651e-05
4.285e-08
d
yr
n .1773514523035856 1.3675e-09 deg/d
Q 3.591006544934421 1.8459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1590  
   data-arc span      11108 days (30.41 yr)  
   first obs. used      1991-01-15  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:50:12  

Additional Information
 Earth MOID = 1.71175 au 
 Jupiter MOID = 1.56837 au 
 T_jup = 3.140 
[ 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 13.71   n/a MPCxxxxx  
diameter diameter 10.896 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30837 Steinheil           Discovered 1991 Jan. 15 by F. Borngen at Tautenburg.
Carl August von Steinheil (1801-1870) was a professor in Munich, where he established an optical workshop in 1854. The workshop gained recognition through the efforts of his son Hugo Adolph (1832-1893) and grandson Rudolf (1865-1930), and the first wide-angle and aplanatic objective was constructed there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1991 AW2 = 1999 NA12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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