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58148 (1987 SH4)
Classification: Main-belt Asteroid          SPK-ID: 2058148
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1986584850846573 2.6446e-08  
a 2.597035791589529 1.3658e-08 au
q 2.081112595521719 7.3085e-08 au
i 13.87625567078295 8.6253e-07 deg
node 17.73752440075114 1.7668e-06 deg
peri 314.0373644385791 2.8496e-06 deg
M .3470057911437655 3.6096e-06 deg
tp 2459199.026501997886
(2020-Dec-15.52650200)
1.5319e-05 TDB
period 1528.675584959381
4.19
1.2059e-05
3.302e-08
d
yr
n .2354979719320667 1.8578e-09 deg/d
Q 3.112958987657338 1.6372e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1692  
   data-arc span      12120 days (33.18 yr)  
   first obs. used      1987-09-29  
   last obs. used      2020-12-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:28:15  

Additional Information
 Earth MOID = 1.0956 au 
 Jupiter MOID = 2.3699 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 13.49   n/a MPCxxxxx  
diameter diameter 5.382 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58148 (1987 SH4)          Discovered 1987-Sep-29 by Bowell, E. at Anderson Mesa
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 SH4 = 1994 EH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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