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541538 (2011 SF21)
Classification: Main-belt Asteroid          SPK-ID: 2541538
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1383753934229839 6.8015e-08  
a 2.392037890920384 2.656e-08 au
q 2.061038706681591 1.7631e-07 au
i 9.202213640755557 6.0265e-06 deg
node 293.8143621763521 3.9799e-05 deg
peri 48.29423879484097 4.7259e-05 deg
M 198.9411699367883 2.9022e-05 deg
tp 2459805.050449364136
(2022-Aug-13.55044936)
0.00011603 TDB
period 1351.296055520032
3.70
2.2507e-05
6.162e-08
d
yr
n .2664109012450702 4.4372e-09 deg/d
Q 2.723037075159177 3.0236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      4500 days (12.32 yr)  
   first obs. used      2008-12-22  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56905  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:24  

Additional Information
 Earth MOID = 1.0623 au 
 Jupiter MOID = 2.65281 au 
 T_jup = 3.501 
[ 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 17.6   .40986 MPO535740 autocmod 2.8

541538 (2011 SF21)          Discovered 2008-Dec-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 SF21 = 2017 FV37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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