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46970 (1998 SW137)
Classification: Main-belt Asteroid          SPK-ID: 2046970
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03651331601097315 3.6949e-08  
a 2.694637702820127 1.3583e-08 au
q 2.596247544841972 9.9163e-08 au
i 5.951428404198189 5.4861e-06 deg
node 181.4582969631794 3.3135e-05 deg
peri 60.88785195497869 8.1386e-05 deg
M 142.3023554094059 7.5712e-05 deg
tp 2458561.856365501063
(2019-Mar-19.35636550)
0.00033812 TDB
period 1615.656380094047
4.42
1.2216e-05
3.345e-08
d
yr
n .2228196567261688 1.6848e-09 deg/d
Q 2.793027860798281 1.4079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      982  
   data-arc span      8147 days (22.31 yr)  
   first obs. used      1998-09-23  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:54:22  

Additional Information
 Earth MOID = 1.58893 au 
 Jupiter MOID = 2.18817 au 
 T_jup = 3.362 
[ 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 15.06   n/a E2021B10  

46970 (1998 SW137)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SW137 = 2000 AA118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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