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192544 (1998 SM157)
Classification: Main-belt Asteroid          SPK-ID: 2192544
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1861427986165197 4.7847e-08  
a 2.224383506607229 8.9575e-09 au
q 1.810330535490931 1.0517e-07 au
i 2.160682394009326 4.285e-06 deg
node 118.8914897605803 0.00013868 deg
peri 257.2756910778384 0.0001392 deg
M 247.1219457594491 1.2095e-05 deg
tp 2459580.444305644835
(2021-Dec-31.94430564)
4.1476e-05 TDB
period 1211.749714790911
3.32
7.3195e-06
2.004e-08
d
yr
n .2970910540400816 1.7946e-09 deg/d
Q 2.638436477723526 1.0625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      7888 days (21.60 yr)  
   first obs. used      1998-09-22  
   last obs. used      2020-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5405  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:34  

Additional Information
 Earth MOID = .811679 au 
 Jupiter MOID = 2.82531 au 
 T_jup = 3.623 
[ 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 17.41   n/a E2021B55  

192544 (1998 SM157)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 1998 SM157 = 2005 YF102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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