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58548 (1997 GK12)
Classification: Main-belt Asteroid          SPK-ID: 2058548
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06340878538681415 6.8536e-08  
a 3.189330841400271 2.5272e-08 au
q 2.987099246550374 2.2318e-07 au
i 4.256911901868693 7.0377e-06 deg
node 174.6942169947551 6.4203e-05 deg
peri 57.46623102739716 7.9884e-05 deg
M 345.5675707409432 4.6653e-05 deg
tp 2459083.903585732740
(2020-Aug-22.40358573)
0.00026949 TDB
period 2080.404506049778
5.70
2.4727e-05
6.77e-08
d
yr
n .1730432706491101 2.0567e-09 deg/d
Q 3.391562436250168 2.6874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      9333 days (25.55 yr)  
   first obs. used      1994-10-31  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:50:42  

Additional Information
 Earth MOID = 1.97932 au 
 Jupiter MOID = 1.59245 au 
 T_jup = 3.190 
[ 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 14.95   n/a E2021B10  
diameter diameter 4.408 km 0.813 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58548 (1997 GK12)          Discovered 1997-Apr-03 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 GK12 = 1999 TB256 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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