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JPL Small-Body Database Browser
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52942 (1998 SU139)
Classification: Main-belt Asteroid          SPK-ID: 2052942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1270166658539069 4.7079e-08  
a 2.233215667946634 7.8215e-09 au
q 1.949560059671347 1.0527e-07 au
i 4.991812369180955 4.2759e-06 deg
node 253.0307696311598 5.4688e-05 deg
peri 140.0223540251674 5.7553e-05 deg
M 167.4338375829779 1.6703e-05 deg
tp 2458433.562536021404
(2018-Nov-11.06253602)
5.6657e-05 TDB
period 1218.973954002259
3.34
6.4039e-06
1.753e-08
d
yr
n .2953303463277549 1.5515e-09 deg/d
Q 2.516871276221921 8.815e-09 au
  Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      7801 days (21.36 yr)  
   first obs. used      1998-09-26  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52671  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:38:54  

Additional Information
 Earth MOID = .959148 au 
 Jupiter MOID = 2.88419 au 
 T_jup = 3.625 
[ 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 15.3   n/a MPO452889  

52942 (1998 SU139)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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