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308407 (2005 SM85)
Classification: Main-belt Asteroid          SPK-ID: 2308407
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09310469941354728 5.4316e-08  
a 3.10486064377196 3.4719e-08 au
q 2.815783526812619 1.7817e-07 au
i 9.311987593982176 1.0557e-05 deg
node 190.1232402781467 3.6314e-05 deg
peri 108.7320487408068 6.5386e-05 deg
M 310.0446183189966 5.4773e-05 deg
tp 2459277.794576990968
(2021-Mar-04.29457699)
0.00030442 TDB
period 1998.304173796543
5.47
3.3518e-05
9.177e-08
d
yr
n .1801527538803276 3.0218e-09 deg/d
Q 3.393937760731301 3.7952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6260 days (17.14 yr)  
   first obs. used      2003-03-09  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:12:17  

Additional Information
 Earth MOID = 1.81864 au 
 Jupiter MOID = 1.84521 au 
 T_jup = 3.194 
[ 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 15.9   n/a MPO471234  

308407 (2005 SM85)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 SM85 = 2003 EN41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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