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8485 Satoru (1989 FL)
Classification: Main-belt Asteroid          SPK-ID: 2008485
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1610083372910099 4.296e-08  
a 2.754989392315244 1.3444e-08 au
q 2.311413131004196 1.2071e-07 au
i 8.983532990569813 5.0105e-06 deg
node 345.222326187447 2.269e-05 deg
peri 228.3281572540729 2.6902e-05 deg
M 292.8608379978947 1.6695e-05 deg
tp 2459311.995472652460
7.853e-05 TDB
period 1670.237858366021
n .215538163140539 1.5777e-09 deg/d
Q 3.19856565362629 1.5609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1947  
   data-arc span      23811 days (65.19 yr)  
   first obs. used      1954-11-23  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48256  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:56:03  

Additional Information
 Earth MOID = 1.31766 au 
 Jupiter MOID = 1.82918 au 
 T_jup = 3.307 
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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 13.4   n/a MPO384831  
diameter diameter 5.838 km 0.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 362.772 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.298   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

8485 Satoru           Discovered 1989 Mar. 29 by T. Seki at Geisei.
Satoru Honda (b. 1913), some time kindergarten principal, is the widow of Minoru Honda, famed comet and nova hunter. When light pollution affected her husband's observatory at Kurashiki she spent her retirement allowance to purchase a new mountain site. The name was suggested by K. Kenmotsu and T. Sato.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1989 FL = 1990 QC9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Apr-04 15:43 UT
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