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215614 (2003 SW121)
Classification: Main-belt Asteroid          SPK-ID: 2215614
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2066249906630355 4.1966e-08  
a 2.211284421748845 9.2005e-09 au
q 1.754377798751674 9.4534e-08 au
i 7.535358954545824 4.7598e-06 deg
node 200.8767399774964 3.793e-05 deg
peri 77.77417146327682 4.0774e-05 deg
M 77.01442437069817 1.2025e-05 deg
tp 2458743.558112945211
(2019-Sep-17.05811295)
4.0067e-05 TDB
period 1201.061750387079
3.29
7.4959e-06
2.052e-08
d
yr
n .2997347970526737 1.8707e-09 deg/d
Q 2.668191044746016 1.1102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      8455 days (23.15 yr)  
   first obs. used      1996-05-09  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52884  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:25:23  

Additional Information
 Earth MOID = .757478 au 
 Jupiter MOID = 2.48918 au 
 T_jup = 3.618 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO385936  

215614 (2003 SW121)          Discovered 2003-Sep-17 by NEAT at Haleakala
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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