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19844 (2000 ST317)
Classification: Jupiter Trojan          SPK-ID: 2019844
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05008270945859584 5.2863e-08  
a 5.194407898714764 9.4066e-08 au
q 4.934257877113997 3.3881e-07 au
i 40.42289649450706 7.9286e-06 deg
node 207.5414358202415 7.1733e-06 deg
peri 102.9081800938069 8.3858e-05 deg
M 289.999923622212 8.5244e-05 deg
tp 2459841.311252868313
(2022-Sep-18.81125287)
0.0010294 TDB
period 4324.167439460693
11.84
0.00011746
3.216e-07
d
yr
n .08325302038833604 2.2615e-09 deg/d
Q 5.454557920315531 9.8777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1444  
   data-arc span      25282 days (69.22 yr)  
   first obs. used      1951-07-08  
   last obs. used      2020-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50442  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:06:14  

Additional Information
 Earth MOID = 4.07362 au 
 Jupiter MOID = .168127 au 
 T_jup = 2.521 
[ 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 11.0   n/a MPO474027  
diameter diameter 37.972 km 0.365 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.053   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

19844 (2000 ST317)          Discovered 2000-Sep-30 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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