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JPL Small-Body Database Browser
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58835 (1998 HG39)
Classification: Main-belt Asteroid          SPK-ID: 2058835
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02880060801034186 4.4804e-08  
a 2.628994109282519 1.2914e-08 au
q 2.553277480479575 1.1719e-07 au
i 15.57645669870378 5.6982e-06 deg
node 25.30961988961275 1.5144e-05 deg
peri 121.3473664916714 9.2012e-05 deg
M 29.46420216337708 8.942e-05 deg
tp 2458473.069017578497
(2018-Dec-20.56901758)
0.00038667 TDB
period 1556.979327570674
4.26
1.1473e-05
3.141e-08
d
yr
n .2312169427205571 1.7037e-09 deg/d
Q 2.704710738085462 1.3286e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1468  
   data-arc span      23422 days (64.13 yr)  
   first obs. used      1955-03-25  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4604  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:13:51  

Additional Information
 Earth MOID = 1.57805 au 
 Jupiter MOID = 2.27929 au 
 T_jup = 3.348 
[ 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 13.8   n/a MPO474468  
diameter diameter 4.711 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.317   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58835 (1998 HG39)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HG39 = 2000 SB294 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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