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19844 (2000 ST317)
Classification: Jupiter Trojan          SPK-ID: 2019844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05047901540785245 5.1078e-08  
a 5.194094491851112 8.818e-08 au
q 4.931901715967118 3.2353e-07 au
i 40.42466159778007 6.9809e-06 deg
node 207.5439888060607 7.0419e-06 deg
peri 103.3154907598183 7.0985e-05 deg
M 322.6205075935623 7.1035e-05 deg
tp 2459845.445988039651
(2022-Sep-22.94598804)
0.00085407 TDB
period 4323.776094574234
11.84
0.00011011
3.015e-07
d
yr
n .08326055561751966 2.1203e-09 deg/d
Q 5.456287267735107 9.2631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1663  
   data-arc span      25558 days (69.97 yr)  
   first obs. used      1951-07-08  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47997  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:54:49  

Additional Information
 Earth MOID = 4.06981 au 
 Jupiter MOID = .167673 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 11.06   n/a MPO614063  
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)  
rotation period rot_per 14.5469 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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