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15022 (1998 SM144)
Classification: Main-belt Asteroid          SPK-ID: 2015022
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1787483098216868 3.7643e-08  
a 2.405914186505044 9.1597e-09 au
q 1.975861092091249 9.1025e-08 au
i 2.235317520719098 4.4855e-06 deg
node 209.5162060035101 0.00010187 deg
peri 245.105569844392 0.00010255 deg
M 236.216516915193 1.3702e-05 deg
tp 2459469.182593548034
(2021-Sep-11.68259355)
5.3222e-05 TDB
period 1363.071465372276
3.73
7.7842e-06
2.131e-08
d
yr
n .2641094096278205 1.5083e-09 deg/d
Q 2.835967280918839 1.0797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      888  
   data-arc span      10411 days (28.50 yr)  
   first obs. used      1992-01-30  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57421  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:56:32  

Additional Information
 Earth MOID = .993837 au 
 Jupiter MOID = 2.34664 au 
 T_jup = 3.500 
[ 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 15.5   n/a MPO384885  

15022 (1998 SM144)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SM144 = 1992 CS6 = 1996 EJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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