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180201 (2003 ST251)
Classification: Main-belt Asteroid          SPK-ID: 2180201
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2115578610539431 3.3593e-08  
a 2.325356560156808 9.748e-09 au
q 1.833409100102279 7.9896e-08 au
i 3.049866286330883 4.2962e-06 deg
node 27.61726693611855 7.5516e-05 deg
peri 37.00198016273922 7.6516e-05 deg
M 289.9518349557399 1.3982e-05 deg
tp 2459452.515366246233
(2021-Aug-26.01536625)
5.1379e-05 TDB
period 1295.187843840286
3.55
8.1442e-06
2.23e-08
d
yr
n .277951960182536 1.7478e-09 deg/d
Q 2.817304020211337 1.181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      2001-02-20  
   last obs. used      2020-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5779  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:25:33  

Additional Information
 Earth MOID = .847252 au 
 Jupiter MOID = 2.50704 au 
 T_jup = 3.543 
[ 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 17.02   n/a E2021B55  
rotation period rot_per 6.631 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

180201 (2003 ST251)          Discovered 2003-Sep-26 by LINEAR at Socorro
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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