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JPL Small-Body Database Browser
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52949 (1998 SK145)
Classification: Main-belt Asteroid          SPK-ID: 2052949
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2242637168845633 6.5336e-08  
a 2.392071648561306 1.6101e-08 au
q 1.855616769600762 1.5606e-07 au
i 1.986384246565533 6.7225e-06 deg
node 187.2207440569208 0.00014231 deg
peri 158.7354888625931 0.00014292 deg
M 330.3298424103468 2.0769e-05 deg
tp 2459111.872265674814
(2020-Sep-19.37226567)
7.8784e-05 TDB
period 1351.324660874571
3.70
1.3643e-05
3.735e-08
d
yr
n .2664052617577553 2.6897e-09 deg/d
Q 2.928526527521849 1.9711e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      8519 days (23.32 yr)  
   first obs. used      1996-01-13  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62497  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:48:07  

Additional Information
 Earth MOID = .848706 au 
 Jupiter MOID = 2.49357 au 
 T_jup = 3.496 
[ 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 15.9   n/a MPO235057  

52949 (1998 SK145)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SK145 = 1996 AQ17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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