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212746 (2007 SF20)
Classification: Main-belt Asteroid          SPK-ID: 2212746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018203461843221 4.3289e-08  
a 2.578988473952209 2.0642e-08 au
q 2.058496127333798 1.1061e-07 au
i 2.872267104944097 8.3177e-06 deg
node 205.142252004794 7.464e-05 deg
peri 104.2636309082132 7.8882e-05 deg
M 92.66750196474574 2.1081e-05 deg
tp 2458611.098622227464
(2019-May-07.59862223)
8.9762e-05 TDB
period 1512.768694805701
4.14
1.8163e-05
4.973e-08
d
yr
n .2379742529284943 2.8572e-09 deg/d
Q 3.099480820570621 2.4809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      354  
   data-arc span      9204 days (25.20 yr)  
   first obs. used      1994-08-10  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:46:46  

Additional Information
 Earth MOID = 1.04631 au 
 Jupiter MOID = 2.17853 au 
 T_jup = 3.395 
[ 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 16.6   n/a MPO440127  

212746 (2007 SF20)          Discovered 2007-Sep-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2007 SF20 = 1994 PF34 = 2005 EQ190 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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