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541539 (2011 ST23)
Classification: Main-belt Asteroid          SPK-ID: 2541539
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2578460300632296 1.9734e-07  
a 2.550179817303033 2.7674e-08 au
q 1.892626075464074 5.1798e-07 au
i 2.972766103716642 1.055e-05 deg
node 312.7016781848931 0.00018156 deg
peri 5.216407899604296 0.00018384 deg
M 128.4378026829224 2.1292e-05 deg
tp 2458669.804995450214
(2019-Jul-05.30499545)
9.2073e-05 TDB
period 1487.491981699293
4.07
2.4213e-05
6.629e-08
d
yr
n .2420181113102474 3.9395e-09 deg/d
Q 3.207733559141993 3.4809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      4842 days (13.26 yr)  
   first obs. used      2007-10-14  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55316  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:35  

Additional Information
 Earth MOID = .877401 au 
 Jupiter MOID = 2.11058 au 
 T_jup = 3.391 
[ 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 17.94   n/a MPCxxxxx  

541539 (2011 ST23)          Discovered 2007-Oct-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 ST23 = 2007 TE380 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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