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30844 Hukeller (1991 KE)
Classification: Main-belt Asteroid          SPK-ID: 2030844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2556683203244102 4.6207e-08  
a 2.673567494391189 1.1761e-08 au
q 1.990020983826252 1.2788e-07 au
i 27.38508513082369 4.1138e-06 deg
node 122.5965870648339 8.1608e-06 deg
peri 109.3061771625573 1.1129e-05 deg
M 283.7382075124491 8.8818e-06 deg
tp 2459538.751447318166
(2021-Nov-20.25144732)
4.0677e-05 TDB
period 1596.74349451487
4.37
1.0536e-05
2.885e-08
d
yr
n .2254588800497207 1.4877e-09 deg/d
Q 3.357114004956125 1.4768e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1508  
   data-arc span      10903 days (29.85 yr)  
   first obs. used      1991-05-17  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45558  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:52  

Additional Information
 Earth MOID = 1.11757 au 
 Jupiter MOID = 2.24769 au 
 T_jup = 3.177 
[ 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 14.03   n/a MPCxxxxx  
diameter diameter 10.843 km 1.273 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.045   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

30844 Hukeller           Discovered 1991 May 17 by C. S. and E. M. Shoemaker at Palomar.
Hans-Ulrich Keller (b. 1943) is a professor of astronomy at the University of Stuttgart. Since 1976 he has directed Stuttgart's Zeiss Planetarium and the Weizheim Observatory. He is also editor of the astronomical almanac Himmelsjahr. The name was suggested by G. and D. Heinlein.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13

Alternate Designations
 1991 KE = 1999 AB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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