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JPL Small-Body Database Browser
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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2301775668537646 4.2496e-08  
a 2.340727932651553 8.4633e-09 au
q 1.801944872447176 1.008e-07 au
i 8.417975627039047 5.3729e-06 deg
node 314.2139505304889 3.1822e-05 deg
peri 334.4919788198098 3.3615e-05 deg
M 66.61450236883076 1.3075e-05 deg
tp 2458758.457783884074
(2019-Oct-01.95778388)
4.6891e-05 TDB
period 1308.05147082363
3.58
7.0942e-06
1.942e-08
d
yr
n .2752185277337151 1.4926e-09 deg/d
Q 2.87951099285593 1.0411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1896  
   data-arc span      16817 days (46.04 yr)  
   first obs. used      1973-09-29  
   last obs. used      2019-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42926  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:20:48  

Additional Information
 Earth MOID = .789867 au 
 Jupiter MOID = 2.33195 au 
 T_jup = 3.514 
[ 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 14.4   n/a MPO395092  
diameter diameter 3.073 km 0.808 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 91.905 h n/a LCDB (Rev. 2019-August); 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.]
geometric albedo albedo 0.391   0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

[ show close-approach data ]
Alternate Designations
 5447 T-2 = 1990 EH2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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