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308874 (2006 SM61)
Classification: Main-belt Asteroid          SPK-ID: 2308874
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1688394187746072 5.7288e-08  
a 2.773146853836791 2.9635e-08 au
q 2.304930350858357 1.6557e-07 au
i 7.899808619957196 6.139e-06 deg
node 251.1093428117233 4.8875e-05 deg
peri 135.6556562551628 5.356e-05 deg
M 333.9472732477066 2.2264e-05 deg
tp 2459122.569850705366
(2020-Sep-30.06985071)
0.00010517 TDB
period 1686.777229568235
4.62
2.7039e-05
7.403e-08
d
yr
n .2134247449452168 3.4212e-09 deg/d
Q 3.241363356815226 3.4639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      7412 days (20.29 yr)  
   first obs. used      1999-03-22  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4994  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:58:13  

Additional Information
 Earth MOID = 1.31788 au 
 Jupiter MOID = 2.23264 au 
 T_jup = 3.302 
[ 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 16.1   n/a MPO446465  

308874 (2006 SM61)          Discovered 2006-Sep-16 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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