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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .169032637243281 7.8418e-05  
a 46.14687539974044 0.0053349 au
q 38.34654735038523 0.0034275 au
i 5.065172907611204 0.000283 deg
node 347.006436662834 0.0011314 deg
peri 95.3470109821492 0.024753 deg
M 308.6427116333796 0.024642 deg
tp 2475535.211248049463
(2065-Sep-06.71124805)
5.0176 TDB
period 114501.6848887961
313.49
19.856
0.05436
d
yr
n .003144058538087292 5.4521e-07 deg/d
Q 53.94720344909567 0.0062367 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      5111 days (13.99 yr)  
   first obs. used      2003-09-25  
   last obs. used      2017-09-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .21763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:27  

Additional Information
 Earth MOID = 37.3661 au 
 Jupiter MOID = 33.2536 au 
 T_jup = 5.960 
[ 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 7.20   n/a MPCxxxxx  
rotation period rot_per 12.45 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:
[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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