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193748 (2001 JS9)
Classification: Main-belt Asteroid          SPK-ID: 2193748
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08303173938688668 5.6856e-08  
a 3.176216446593431 3.3594e-08 au
q 2.912489670363542 1.8479e-07 au
i 10.09640511917079 6.5394e-06 deg
node 63.05466511618103 2.8904e-05 deg
peri 296.4351334751725 4.4571e-05 deg
M 16.7690739879446 3.6109e-05 deg
tp 2458904.190275100566
(2020-Feb-24.69027510)
0.00020693 TDB
period 2067.585901804819
5.66
3.2803e-05
8.981e-08
d
yr
n .174116103077387 2.7624e-09 deg/d
Q 3.43994322282332 3.6384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      464  
   data-arc span      6239 days (17.08 yr)  
   first obs. used      2001-05-15  
   last obs. used      2018-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60789  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 07:59:19  

Additional Information
 Earth MOID = 1.92838 au 
 Jupiter MOID = 1.9947 au 
 T_jup = 3.171 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO449957  
diameter diameter 6.255 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193748 (2001 JS9)          Discovered 2001-May-15 by NEAT at Haleakala
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 2001 JS9 = 2003 UE213 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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