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91329 (1999 GK63)
Classification: Main-belt Asteroid          SPK-ID: 2091329
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1311092146531716 5.4851e-08  
a 2.406450335411264 1.4659e-08 au
q 2.090942521833632 1.293e-07 au
i 5.105705172661158 6.1808e-06 deg
node 7.382422584837312 4.3424e-05 deg
peri 147.7111807096385 4.74e-05 deg
M 272.5486626686877 2.3614e-05 deg
tp 2459331.728529056793
(2021-Apr-27.22852906)
9.1629e-05 TDB
period 1363.527123761322
3.73
1.2459e-05
3.411e-08
d
yr
n .2640211505341614 2.4124e-09 deg/d
Q 2.721958148988896 1.658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      8083 days (22.13 yr)  
   first obs. used      1997-09-30  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56107  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:16:32  

Additional Information
 Earth MOID = 1.10244 au 
 Jupiter MOID = 2.26372 au 
 T_jup = 3.505 
[ 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 16.0   n/a MPO453352  
diameter diameter 1.552 km 0.401 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.292   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91329 (1999 GK63)          Discovered 1999-Apr-09 by LONEOS at Anderson Mesa
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 GK63 = 2001 XM264 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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