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JPL Small-Body Database Browser
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172478 (2003 SM87)
Classification: Main-belt Asteroid          SPK-ID: 2172478
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438003520087328 5.1836e-08  
a 2.411815990055887 1.1971e-08 au
q 2.06499600170556 1.2608e-07 au
i 4.216006421791415 4.2282e-06 deg
node 68.2059595484328 8.5298e-05 deg
peri 283.2310811732563 8.6991e-05 deg
M 167.6429249069522 1.6919e-05 deg
tp 2458363.414954595097
(2018-Sep-01.91495460)
6.2745e-05 TDB
period 1368.090043006962
3.75
1.0186e-05
2.789e-08
d
yr
n .2631405745843645 1.9591e-09 deg/d
Q 2.758635978406214 1.3692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      297  
   data-arc span      6496 days (17.79 yr)  
   first obs. used      2002-04-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59107  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:49:44  

Additional Information
 Earth MOID = 1.06435 au 
 Jupiter MOID = 2.66607 au 
 T_jup = 3.501 
[ 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 16.9   n/a MPO454182  

172478 (2003 SM87)          Discovered 2003-Sep-17 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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