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JPL Small-Body Database Browser
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9098 Toshihiko (1996 BQ3)
Classification: Main-belt Asteroid          SPK-ID: 2009098
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1557628707747297 3.3961e-08  
a 2.909630408580507 1.207e-08 au
q 2.456418023246558 1.0077e-07 au
i 3.32789799875885 4.5214e-06 deg
node 44.51013133045781 5.9577e-05 deg
peri 33.71270836570843 6.1323e-05 deg
M 13.34086865718148 1.38e-05 deg
tp 2458933.320498800311
6.9418e-05 TDB
period 1812.822017318149
n .1985854080328175 1.2356e-09 deg/d
Q 3.362842793914457 1.395e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2363  
   data-arc span      11082 days (30.34 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49318  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:11:24  

Additional Information
 Earth MOID = 1.47271 au 
 Jupiter MOID = 1.89598 au 
 T_jup = 3.263 
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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 13.0   n/a MPO332905  
diameter diameter 7.095 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.19 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.243   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

9098 Toshihiko           Discovered 1996 Jan. 27 by T. Kobayashi at Oizumi.
Toshihiko Osawa (1935-2001) was a genius in visual planetary observing. He began observing with his self-made telescope at age 12 and discovered "Osawa's spots" on Saturn in 1952. For more than half of his life he was ill, but he continued observing with his telescope on the roof of a hospital.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1996 BQ3 = 1989 TT15 = 1991 BU2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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