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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .142658435943145 3.6451e-08  
a 3.344608290760829 1.7677e-08 au
q 2.867471703158413 1.2073e-07 au
i 1.268067465098458 3.7985e-06 deg
node 205.9312313540403 0.00018211 deg
peri 127.5514370302959 0.00018268 deg
M 156.1899506759389 1.4011e-05 deg
tp 2458427.180595501940
(2018-Nov-04.68059550)
8.5983e-05 TDB
period 2234.170534718392
6.12
1.7713e-05
4.85e-08
d
yr
n .1611336262857734 1.2775e-09 deg/d
Q 3.821744878363244 2.0199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1527  
   data-arc span      10595 days (29.01 yr)  
   first obs. used      1992-04-28  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54585  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:04:07  

Additional Information
 Earth MOID = 1.85678 au 
 Jupiter MOID = 1.54951 au 
 T_jup = 3.142 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456880.5 (2014-Aug-11.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1447380335533839 3.8184e-08  
q 2.858447463817574 1.2762e-07 au
tp 2456161.599561964940
(2012-Aug-22.09956197)
8.0518e-05 TDB
node 207.522359068231 0.00018816 deg
peri 121.6921004303973 0.00018855 deg
i 1.238425870268047 3.7669e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1527  
   data-arc span      10595 days (29.01 yr)  
   first obs. used      1992-04-28  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54585  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:04:07  

Additional Information
 Jupiter MOID = 1.54951 au 
 T_jup = 3.142 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.457980365918259E-15 -4.840309484976815E-15 -3.131427760006466E-13 8.958642333773763E-15 -9.991582915669467E-14 1.348105851942602E-17
q -4.840309484976815E-15 1.628699397436744E-14 1.146597731205288E-12 1.597354298998377E-15 3.316521378319262E-13 5.478406871271692E-16
tp -3.131427760006466E-13 1.146597731205288E-12 6.483221795997699E-9 7.586161597325013E-11 9.963932768245966E-10 1.265808379834857E-12
node 8.958642333773763E-15 1.597354298998377E-15 7.586161597325013E-11 3.540573013352806E-8 -3.538593970597769E-8 4.412992395042813E-12
peri -9.991582915669467E-14 3.316521378319262E-13 9.963932768245966E-10 -3.538593970597769E-8 3.55529425245114E-8 -4.287055708594401E-12
i 1.348105851942602E-17 5.478406871271692E-16 1.265808379834857E-12 4.412992395042813E-12 -4.287055708594401E-12 1.418927051927503E-11

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 13.92   n/a E2021B10  

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

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