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541537 (2011 ST20)
Classification: Main-belt Asteroid          SPK-ID: 2541537
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 .1533003727955766 8.9362e-08  
a 2.5351222088511 1.6999e-08 au
q 2.14648702915188 2.2678e-07 au
i 14.35196438718922 7.161e-06 deg
node 239.0250057043237 3.2471e-05 deg
peri 137.2490751020298 3.7379e-05 deg
M 97.80379960700913 1.8496e-05 deg
tp 2458799.956209776959
(2019-Nov-12.45620978)
7.4595e-05 TDB
period 1474.337040684471
4.04
1.4829e-05
4.06e-08
d
yr
n .244177545612547 2.456e-09 deg/d
Q 2.923757388550319 1.9605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      6311 days (17.28 yr)  
   first obs. used      2003-11-02  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:35  

Additional Information
 Earth MOID = 1.1709 au 
 Jupiter MOID = 2.57614 au 
 T_jup = 3.389 
[ 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 17.69   .30193 MPCxxxxx autocmod 2.8

541537 (2011 ST20)          Discovered 2011-Sep-20 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 ST20 = 2015 TL189 = 2017 AE10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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