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385458 (2003 SP317)
Classification: TransNeptunian Object          SPK-ID: 2385458
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1680112788565652 9.1699e-05  
a 46.05526410484647 0.0053529 au
q 38.31746028451435 0.0041209 au
i 5.067791496065134 0.00028719 deg
node 347.0211791917478 0.0011637 deg
peri 95.83337284825359 0.026105 deg
M 307.4870514201203 0.025243 deg
tp 2475653.069167506674
(2066-Jan-02.56916751)
5.1156 TDB
period 114160.8891221041
312.56
19.903
0.05449
d
yr
n .003153444255457326 5.4978e-07 deg/d
Q 53.7930679251786 0.0062522 au
  Orbit Determination Parameters
   # obs. used (total)      71  
   data-arc span      5111 days (13.99 yr)  
   first obs. used      2003-09-25  
   last obs. used      2017-09-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .22917  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:08:18  

Additional Information
 Earth MOID = 37.3374 au 
 Jupiter MOID = 33.2216 au 
 T_jup = 5.956 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.1   n/a MPO460505  
rotation period rot_per 12.45 h n/a LCDB (Rev. 2019-August); 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:
[Andersen, M.; Benecchi, S.D.; Chen, Y.-T.; Eduardo, M.R.; et al (2018) arXiv:1812.04304.]

385458 (2003 SP317)          Discovered 2003-Sep-25 by Mauna Kea at Mauna Kea
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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