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308458 (2005 SJ273)
Classification: Main-belt Asteroid          SPK-ID: 2308458
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09437441161266132 6.0804e-08  
a 3.124960122132277 4.5747e-08 au
q 2.830043849293013 2.0612e-07 au
i 2.90729706156262 9.9383e-06 deg
node 240.8172325463934 0.00016286 deg
peri 41.07534210613579 0.0001749 deg
M 316.6617073066806 6.1252e-05 deg
tp 2459243.403875469836
(2021-Jan-28.90387547)
0.00034214 TDB
period 2017.739733956354
5.52
4.4308e-05
1.213e-07
d
yr
n .1784174608556265 3.9179e-09 deg/d
Q 3.419876394971541 5.0065e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      6245 days (17.10 yr)  
   first obs. used      2003-03-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59422  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:12:34  

Additional Information
 Earth MOID = 1.81444 au 
 Jupiter MOID = 1.69355 au 
 T_jup = 3.206 
[ 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 16.2   n/a MPO455272  

308458 (2005 SJ273)          Discovered 2005-Sep-27 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 SJ273 = 2010 KG49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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