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9198 Sasagamine (1993 BJ3)
Classification: Main-belt Asteroid          SPK-ID: 2009198
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08919540392334696 1.3622e-08  
a 2.257080414036861 5.429e-09 au
q 2.055759214819368 3.1615e-08 au
i 1.19741024928585 9.3357e-07 deg
node 172.3515129959117 2.8782e-05 deg
peri 305.7132603935893 3.0427e-05 deg
M 154.9269053269626 1.0797e-05 deg
tp 2458863.480226680869
(2020-Jan-14.98022668)
3.6979e-05 TDB
period 1238.565489899399
3.39
4.4688e-06
1.223e-08
d
yr
n .2906588330902395 1.0487e-09 deg/d
Q 2.458401613254353 5.9133e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2453  
   data-arc span      15552 days (42.58 yr)  
   first obs. used      1978-11-30  
   last obs. used      2021-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 01:56:08  

Additional Information
 Earth MOID = 1.0726 au 
 Jupiter MOID = 2.59071 au 
 T_jup = 3.617 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456917.5 (2014-Sep-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08897160011570085 1.3647e-08  
q 2.056482803327733 3.1723e-08 au
tp 2456386.838256851644
(2013-Apr-04.33825685)
3.7657e-05 TDB
node 172.3592118362088 2.881e-05 deg
peri 305.9222244947496 3.0459e-05 deg
i 1.196447507991714 9.335e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2453  
   data-arc span      15552 days (42.58 yr)  
   first obs. used      1978-11-30  
   last obs. used      2021-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 01:56:08  

Additional Information
 Jupiter MOID = 2.59071 au 
 T_jup = 3.617 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.862505626101682E-16 -4.27567577481012E-16 -8.770661019059052E-14 4.098316414015132E-14 -5.314794313693987E-14 4.87686839356375E-15
q -4.27567577481012E-16 1.006320993688248E-15 1.628937268730807E-13 -9.233792777640463E-14 1.135968642683601E-13 -1.094430319902476E-14
tp -8.770661019059052E-14 1.628937268730807E-13 1.418079012999768E-9 -1.511577664750719E-11 3.983662748662422E-10 2.661384730417198E-12
node 4.098316414015132E-14 -9.233792777640463E-14 -1.511577664750719E-11 8.300424571919293E-10 -8.260835382952955E-10 1.434806616629615E-11
peri -5.314794313693987E-14 1.135968642683601E-13 3.983662748662422E-10 -8.260835382952955E-10 9.277462197568659E-10 -1.329631843084425E-11
i 4.87686839356375E-15 -1.094430319902476E-14 2.661384730417198E-12 1.434806616629615E-11 -1.329631843084425E-11 8.71418009629388E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.32   n/a E2021B10  
diameter diameter 3.584 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9198 Sasagamine           Discovered 1993 Jan. 25 by T. Seki at Geisei.
Some 1860 m above sea level, Sasagamine is a mountain in the central part of the Shikoku range.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1993 BJ3 = 1978 WQ16 = 1990 HT4 = 1992 YJ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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