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16450 Messerschmidt (1989 SY2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2016450
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09358545562036585 4.8055e-08  
a 3.218726974664064 3.7966e-08 AU
q 2.917500944222566 1.5778e-07 AU
i 5.880801032556196 6.3452e-06 deg
node 127.1799445300469 6.0146e-05 deg
peri 136.25632174 7.3229e-05 deg
M 242.4507811185703 4.4682e-05 deg
tp 2457689.218712830116
(2016-Oct-27.71871283)
0.0002654 JED
period 2109.23338307279
5.77
3.7318e-05
1.022e-07
d
yr
n .1706781254692366 3.0198e-09 deg/d
Q 3.519953005105563 4.1519e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      11439 days (31.32 yr)  
   first obs. used      1983-10-01  
   last obs. used      2015-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52019  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:46:15  

Additional Information
 Earth MOID = 1.90693 AU 
 T_jup = 3.174 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a PDS3 (MPO 2837)  

16450 Messerschmidt           Discovered 1989 Sept. 26 by E. W. Elst at the European Southern Observatory.
During 1719-1728 German naturalist Daniel Gottlieb Messerschmidt (1685-1735) was sent by Peter the Great on a expedition to Siberia. The first person to study systematically the "rumors" about "frozen" mammoths, he investigated thoroughly Siberian fauna and flora, as well as its mineralogy and geography.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060613/MPCPages.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1989 SY2 = 1998 FU128 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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