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JPL Small-Body Database Browser
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35660 (1998 QS38)
Classification: Main-belt Asteroid          SPK-ID: 2035660
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2162635311809236 3.647e-08  
a 3.169958308927759 2.6207e-08 au
q 2.484411931342733 1.223e-07 au
i 13.43862566290029 6.6807e-06 deg
node 321.3721673803483 2.0365e-05 deg
peri 289.9648109216827 2.5878e-05 deg
M 10.93429378975204 1.6766e-05 deg
tp 2458937.886642800115
(2020-Mar-29.38664280)
9.5757e-05 TDB
period 2061.47822853311
5.64
2.5565e-05
6.999e-08
d
yr
n .1746319679816196 2.1656e-09 deg/d
Q 3.855504686512786 3.1875e-08 au
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      10134 days (27.75 yr)  
   first obs. used      1992-07-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:07:54  

Additional Information
 Earth MOID = 1.50916 au 
 Jupiter MOID = 1.57028 au 
 T_jup = 3.124 
[ 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 13.8   n/a MPO347781  
diameter diameter 10.218 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35660 (1998 QS38)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 QS38 = 1999 XT128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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