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6647 Josse (1991 GG5)
Classification: Main-belt Asteroid          SPK-ID: 2006647
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968189978236225 3.4853e-08  
a 2.20616866095948 4.9823e-09 au
q 1.771952756079552 7.6977e-08 au
i 1.143591769826622 3.7273e-06 deg
node 217.8268168155057 0.00014934 deg
peri 137.8486884023232 0.00014953 deg
M 177.6418674828603 7.7255e-06 deg
tp 2458409.892003465868
(2018-Oct-18.39200347)
2.4981e-05 TDB
period 1196.896214642654
3.28
4.0545e-06
1.11e-08
d
yr
n .3007779585195546 1.0189e-09 deg/d
Q 2.640384565839408 5.9629e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2035  
   data-arc span      18447 days (50.51 yr)  
   first obs. used      1969-10-15  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:36:30  

Additional Information
 Earth MOID = .767623 au 
 Jupiter MOID = 2.80291 au 
 T_jup = 3.635 
[ 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 15.0   n/a MPO452261  
diameter diameter 6.519 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.9498 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.050   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6647 Josse (1991 GG5)          Discovered 1991-Apr-08 by Elst, E. W. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1991 GG5 = 1969 TG5 = 1979 VZ2 = 1982 SH7 = 1992 UG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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