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9398 Bidelman (1994 SH3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2009398
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1425947492169042 3.7007e-08  
a 3.343719903891902 1.9378e-08 au
q 2.866923002744866 1.2394e-07 au
i 1.268141569284501 4.3983e-06 deg
node 205.9649013471822 0.00018287 deg
peri 127.366592857483 0.00018361 deg
M 92.55718541651675 1.4896e-05 deg
tp 2458426.316244751828
(2018-Nov-03.81624475)
9.2702e-05 TDB
period 2233.280441266048
6.11
1.9414e-05
5.315e-08
d
yr
n .1611978475018193 1.4013e-09 deg/d
Q 3.820516805038939 2.2141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1390  
   data-arc span      10133 days (27.74 yr)  
   first obs. used      1992-04-28  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5522  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:18:20  

Additional Information
 Earth MOID = 1.85697 au 
 Jupiter MOID = 1.55039 au 
 T_jup = 3.143 
[ 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 13.9   n/a MPO337337  

9398 Bidelman           Discovered 1994 Sept. 28 by Spacewatch at Kitt Peak.
William P. Bidelman (b. 1918) was director of the Warner and Swasey Observatory during 1970--1975 and professor of astronomy at Case Western Reserve University (formerly Case Institute of Techology) during 1970--1986. He is a leader in stellar classification and the identification of chemically peculiar stars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1994 SH3 = 1997 AC20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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