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24749 Grebel (1992 SM17)
Classification: Main-belt Asteroid          SPK-ID: 2024749
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1638859768717087 4.4881e-08  
a 3.197714464837913 1.8025e-08 au
q 2.673653906011158 1.489e-07 au
i 19.62356439562823 4.8314e-06 deg
node 185.5961197024856 1.1078e-05 deg
peri 146.7663065973946 1.7331e-05 deg
M 2.69615958521844 1.1881e-05 deg
tp 2459184.857684445034
(2020-Dec-01.35768445)
6.8926e-05 TDB
period 2088.612866486305
5.72
1.766e-05
4.835e-08
d
yr
n .1723632013268364 1.4574e-09 deg/d
Q 3.721775023664668 2.0979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1752  
   data-arc span      12575 days (34.43 yr)  
   first obs. used      1986-08-07  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:48:32  

Additional Information
 Earth MOID = 1.68418 au 
 Jupiter MOID = 1.82289 au 
 T_jup = 3.084 
[ 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 13.11   n/a E2021B10  
diameter diameter 18.239 km 2.716 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.047   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

24749 Grebel           Discovered 1992 Sept. 24 by L. D. Schmadel and F. Börngen at Tautenburg.
Eva K. Grebel (b. 1966) is a German astronomer, professor at the Heidelberg University and since 2007 director at the Astronomisches Rechen-Institut. Her main interests cover the fields of galactic structure, evolution and formation, dark matter and near-field cosmology. The name was suggested by the first discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

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Alternate Designations
 1992 SM17 = 1986 PF5 = 1986 RL8 = 1986 SA1 = 2001 FD33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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