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2459 Spellmann (1980 LB1)
Classification: Main-belt Asteroid          SPK-ID: 2002459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07284567200205867 3.6948e-08  
a 3.020161519861032 1.6103e-08 au
q 2.800155824391996 1.1383e-07 au
i 9.693278119050923 4.9809e-06 deg
node 216.1924021424866 2.3589e-05 deg
peri 220.3807579051762 4.0978e-05 deg
M 41.0001764086925 3.3219e-05 deg
tp 2458782.163217409237
(2019-Oct-25.66321741)
0.00017683 TDB
period 1917.095208302822
5.25
1.5332e-05
4.198e-08
d
yr
n .1877841008839113 1.5018e-09 deg/d
Q 3.240167215330068 1.7276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2334  
   data-arc span      32600 days (89.25 yr)  
   first obs. used      1931-01-16  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43624  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:40:09  

Additional Information
 Earth MOID = 1.82239 au 
 Jupiter MOID = 2.05589 au 
 T_jup = 3.221 
[ 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 11.5   n/a MPO452196  
diameter diameter 17.831 km 0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.5334 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.184   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2459 Spellmann           Discovered 1980 June 11 by C. S. Shoemaker on films taken at Palomar by E. Helin and S. J. Bus.
Named in honor of the discoverer's father, Leonard Spellmann, who has been a never-failing source of encouragement and support.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 6532Last Updated: 2006-03-21

Alternate Designations
 1980 LB1 = 1929 TV = 1931 BM = 1931 BO = 1940 WN = 1950 TT1 = 1971 UZ1 = 1974 HH2 = 1979 DU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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