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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1607077706264568 2.807e-08  
a 2.754005037482157 1.1127e-08 au
q 2.311415027614368 7.8676e-08 au
i 8.984486671679781 6.43e-07 deg
node 345.2218739999457 9.0499e-06 deg
peri 228.3818307993764 9.634e-06 deg
M 18.18088877976587 4.6408e-06 deg
tp 2459312.194068435171
(2021-Apr-07.69406844)
2.131e-05 TDB
period 1669.342776966766
4.57
1.0117e-05
2.77e-08
d
yr
n .2156537320957702 1.307e-09 deg/d
Q 3.196595047349946 1.2916e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2327  
   data-arc span      24322 days (66.59 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46747  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 01:37:30  

Additional Information
 Earth MOID = 1.31831 au 
 Jupiter MOID = 1.82906 au 
 T_jup = 3.308 
[ 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 13.42   n/a MPO614063  
diameter diameter 5.838 km 0.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 362.772 h n/a LCDB (Rev. 2020-October); 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] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1904-May-01 21:10 00:02 Jupiter 1.82610756480774 1.82610724789377 1.8261078817376 2.80869812167469 2.63839047267802 2416602.381778713 1.9358350527139 394.805508668586 7.35594572696019 89.420465854699 5620225.84520761 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 01:38:31 2021-Jul-08 01:38
1963-Nov-13 13:11 < 00:01 Jupiter 1.82082000793701 1.82081978332464 1.82082023254937 2.58649108283786 2.39990861018298 2438347.049350122 0.90169367709905 169.647022505011 9.21893777445702 86.8949166087943 6295416.77541845 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 01:38:31 2021-Jul-08 01:38
2023-May-29 16:10 < 00:01 Jupiter 1.82822171191976 1.82822146776418 1.82822195607556 2.35122508326119 2.14514598701645 2460094.173595913 0.198934152655981 43.3418935418351 7.18804995538831 -81.1566991271632 6612515.88961965 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 01:38:31 2021-Jul-08 01:38
2082-Dec-16 05:26 00:01 Jupiter 1.8477839473298 1.84778359027438 1.84778430438522 2.11514407202709 1.88601066585197 2481844.726318461 1.26746361039475 69.097299695827 30.7424831160219 68.7663249986314 5031380.00297405 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 01:38:31 2021-Jul-08 01:38
2142-Jul-09 18:15 00:02 Jupiter 1.87879071927975 1.87878998090171 1.87879145765864 1.91030748517743 1.65759069929293 2503599.260430155 2.4007227390192 87.9006829928775 44.2905244669509 -30.081749476142 2601916.73134965 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 01:38:31 2021-Jul-08 01:38
2164-Aug-18 15:38 00:03 Jupiter 1.98515902482462 1.98515759341693 1.98516045623197 3.54737042178026 3.42497913706668 2511675.151176055 2.60383628048114 59.0802183567708 34.9928543981669 7.62640666741881 1259312.47206258 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 01:38:31 2021-Jul-08 01:38

Alternate Designations
 1989 FL = 1990 QC9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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