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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1105751643402606 4.9714e-08  
a 3.231334433970543 5.7932e-08 au
q 2.874029097895907 1.7586e-07 au
i 6.165463294003687 6.0506e-06 deg
node 132.5171849063268 7.0173e-05 deg
peri 138.5801649661345 7.9086e-05 deg
M 271.8330378565599 3.7794e-05 deg
tp 2459520.106608738546
(2021-Nov-01.60660874)
0.00022786 TDB
period 2121.638021751829
5.81
5.7055e-05
1.562e-07
d
yr
n .1696802170347368 4.5631e-09 deg/d
Q 3.588639770045179 6.4337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      6142 days (16.82 yr)  
   first obs. used      2003-04-09  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61067  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:40:51  

Additional Information
 Earth MOID = 1.86156 au 
 Jupiter MOID = 1.54343 au 
 T_jup = 3.168 
[ 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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