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541556 (2011 SJ115)
Classification: Main-belt Asteroid          SPK-ID: 2541556
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 .2054027241973682 6.2316e-08  
a 2.454433314173684 3.1043e-08 au
q 1.950286025081635 1.4018e-07 au
i 2.545670440267565 8.8947e-06 deg
node 81.57394494099067 0.00016277 deg
peri 244.8449794012537 0.00016686 deg
M 169.0692161702032 4.1313e-05 deg
tp 2458540.889863760833
(2019-Feb-26.38986376)
0.00015142 TDB
period 1404.511444632521
3.85
2.6646e-05
7.295e-08
d
yr
n .2563168861142254 4.8628e-09 deg/d
Q 2.958580603265733 3.742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      4873 days (13.34 yr)  
   first obs. used      2007-10-16  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:38  

Additional Information
 Earth MOID = .93828 au 
 Jupiter MOID = 2.3838 au 
 T_jup = 3.463 
[ 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 17.88   .2855 MPCxxxxx autocmod 2.8

541556 (2011 SJ115)          Discovered 2011-Sep-21 by CSS at Catalina
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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