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58328 (1994 ST9)
Classification: Main-belt Asteroid          SPK-ID: 2058328
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216809143980022 3.2168e-08  
a 2.316874817321599 8.8481e-09 au
q 2.034955371004202 7.7343e-08 au
i 3.506020142756977 3.8863e-06 deg
node 175.6837371744771 6.6227e-05 deg
peri 299.655833714306 6.9093e-05 deg
M 6.805345522159133 1.8379e-05 deg
tp 2458976.149944244813
(2020-May-06.64994424)
6.5759e-05 TDB
period 1288.108009111928
3.53
7.3789e-06
2.02e-08
d
yr
n .2794796689822603 1.601e-09 deg/d
Q 2.598794263638995 9.9248e-09 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      9326 days (25.53 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59534  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:51:28  

Additional Information
 Earth MOID = 1.05393 au 
 Jupiter MOID = 2.48185 au 
 T_jup = 3.568 
[ 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 16.2   n/a MPO452961  
diameter diameter 1.706 km 0.382 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58328 (1994 ST9)          Discovered 1994-Sep-28 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 ST9 = 1998 XK58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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