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JPL Small-Body Database Browser
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58992 (1998 SH8)
Classification: Main-belt Asteroid          SPK-ID: 2058992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .2371887260891587 4.5504e-08  
a 2.266384939133659 6.6022e-09 au
q 1.728823982592891 1.0467e-07 au
i .358901837497272 4.329e-06 deg
node 331.0415150388174 0.00059137 deg
peri 16.12958479487581 0.00059142 deg
M 139.5126440661012 6.9745e-06 deg
tp 2458517.541283189869
(2019-Feb-03.04128319)
2.3453e-05 TDB
period 1246.232119070654
3.41
5.4456e-06
1.491e-08
d
yr
n .2888707444552631 1.2623e-09 deg/d
Q 2.803945895674428 8.1682e-09 au
  Orbit Determination Parameters
   # obs. used (total)      872  
   data-arc span      10384 days (28.43 yr)  
   first obs. used      1991-08-02  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52646  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 09:46:26  

Additional Information
 Earth MOID = .722012 au 
 Jupiter MOID = 2.61882 au 
 T_jup = 3.578 
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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 15.9   n/a MPO449379  

58992 (1998 SH8)          Discovered 1998-Sep-20 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 SH8 = 1991 PZ23 = 2000 DO49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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