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541961 (2012 FT4)
Classification: Main-belt Asteroid          SPK-ID: 2541961
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09114902484264716 6.2254e-08  
a 2.682999620369287 2.7648e-08 au
q 2.438446821319434 1.6522e-07 au
i 4.921925570789457 7.7581e-06 deg
node 335.9658913753758 6.1866e-05 deg
peri 238.9642754339677 7.7842e-05 deg
M 318.2164834983035 4.2378e-05 deg
tp 2459386.808140108951
(2021-Jun-21.30814011)
0.00018787 TDB
period 1605.200712019988
4.39
2.4812e-05
6.793e-08
d
yr
n .2242710193835979 3.4666e-09 deg/d
Q 2.92755241941914 3.0168e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      3823 days (10.47 yr)  
   first obs. used      2010-11-12  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64269  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:52  

Additional Information
 Earth MOID = 1.43559 au 
 Jupiter MOID = 2.06124 au 
 T_jup = 3.364 
[ 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 17.3   .42657 MPO504551 autocmod 2.8

541961 (2012 FT4)          Discovered 2010-Nov-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2012 FT4 = 2016 CW158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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