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JPL Small-Body Database Browser
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442301 (2011 SF54)
Classification: Outer Main-belt Asteroid          SPK-ID: 2442301
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1103964840024245 6.3524e-08  
a 3.23273155273898 7.1633e-08 au
q 2.875849355592898 1.979e-07 au
i 6.164260970794935 6.0537e-06 deg
node 132.516406181222 8.4887e-05 deg
peri 138.3578933551431 9.6297e-05 deg
M 204.2212228040477 4.1969e-05 deg
tp 2459519.168192337195
(2021-Oct-31.66819234)
0.00024758 TDB
period 2123.014156321053
5.81
7.0564e-05
1.932e-07
d
yr
n .169570230574364 5.6362e-09 deg/d
Q 3.589613749885062 7.9541e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      5343 days (14.63 yr)  
   first obs. used      2003-04-09  
   last obs. used      2017-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62086  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:57:58  

Additional Information
 Earth MOID = 1.86293 au 
 Jupiter MOID = 1.54124 au 
 T_jup = 3.167 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO437720  

442301 (2011 SF54)          Discovered 2008-Jan-11 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 SF54 = 2015 HM40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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