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JPL Small-Body Database Browser
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185718 (1998 SY64)
Classification: Main-belt Asteroid          SPK-ID: 2185718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1916248769669625 4.351e-08  
a 2.451019663135483 1.3896e-08 au
q 1.981343321743541 1.1043e-07 au
i 3.235324929037631 6.9892e-06 deg
node 147.2361853685801 7.0673e-05 deg
peri 251.3989989651289 7.3302e-05 deg
M 220.5795270015137 1.9068e-05 deg
tp 2459543.303539507932
(2021-Nov-24.80353951)
7.6308e-05 TDB
period 1401.582350283498
3.84
1.1919e-05
3.263e-08
d
yr
n .2568525494967762 2.1844e-09 deg/d
Q 2.920696004527426 1.6559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      406  
   data-arc span      9869 days (27.02 yr)  
   first obs. used      1992-02-28  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58257  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:40:44  

Additional Information
 Earth MOID = .991721 au 
 Jupiter MOID = 2.50082 au 
 T_jup = 3.468 
[ 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 16.5   n/a MPO470003  

185718 (1998 SY64)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1998 SY64 = 2002 VY83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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