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17931 (1999 GA27)
Classification: Outer Main-belt Asteroid          SPK-ID: 2017931
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473986767373619 4.9838e-08  
a 3.206785786904337 1.9922e-08 au
q 2.734109805334457 1.6302e-07 au
i 2.23720486494448 3.9855e-06 deg
node 115.0040698146395 0.00014037 deg
peri 100.7051251179788 0.00014112 deg
M 236.0780989249118 1.7437e-05 deg
tp 2459722.519485845167
(2022-May-23.01948585)
0.00010513 TDB
period 2097.506676779935
5.74
1.9546e-05
5.351e-08
d
yr
n .1716323499635612 1.5994e-09 deg/d
Q 3.679461768474216 2.2859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1420  
   data-arc span      8915 days (24.41 yr)  
   first obs. used      1995-08-25  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:15:30  

Additional Information
 Earth MOID = 1.72844 au 
 Jupiter MOID = 1.2907 au 
 T_jup = 3.174 
[ 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 13.6   n/a MPO365467  
diameter diameter 8.414 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17931 (1999 GA27)          Discovered 1999-Apr-07 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GA27 = 2000 OF13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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