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9507 Gottfried (5447 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2009507
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.

Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2299405798953236 3.665e-08  
a 2.341472959641428 7.5256e-09 au
q 1.803073309492258 8.6708e-08 au
i 8.417898909921989 4.1649e-06 deg
node 314.2132646817938 3.0377e-05 deg
peri 334.5620003385693 3.1857e-05 deg
M 175.503357418529 1.223e-05 deg
tp 2458758.508231766367
4.2826e-05 TDB
period 1308.676027298949
n .2750871816174585 1.3262e-09 deg/d
Q 2.879872609790598 9.256e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2158  
   data-arc span      17303 days (47.37 yr)  
   first obs. used      1973-09-29  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 12:43:50  

Additional Information
 Earth MOID = .790598 au 
 Jupiter MOID = 2.33024 au 
 T_jup = 3.514 
[ 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 14.57   n/a E2021B10  
diameter diameter 3.073 km 0.808 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 91.905 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.391   0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

9507 Gottfried           Discovered 1973 Sept. 30 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Gottfried of Brabant, brother of Elsa, was changed into a swan by Ortrud, wife of Telramund. After Ortrud's death he again became a human being, as Lohengrin had to leave Elsa.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 5447 T-2 = 1990 EH2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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