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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1311092040327332 5.3426e-08  
a 2.406450334609965 1.4453e-08 au
q 2.090942546694948 1.2628e-07 au
i 5.10570265084312 6.0866e-06 deg
node 7.382406939595403 4.3341e-05 deg
peri 147.7111802143868 4.7212e-05 deg
M 272.5486821756587 2.3124e-05 deg
tp 2459331.728455007232
(2021-Apr-27.22845501)
8.9713e-05 TDB
period 1363.527123080281
3.73
1.2283e-05
3.363e-08
d
yr
n .2640211506660319 2.3785e-09 deg/d
Q 2.721958122524982 1.6347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   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      .56068  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:27:49  

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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