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46974 (1998 SA140)
Classification: Main-belt Asteroid          SPK-ID: 2046974
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917624632132722 4.3322e-08  
a 2.58897201556476 1.3678e-08 au
q 2.092504364669832 1.1548e-07 au
i 12.12160806489353 7.0344e-06 deg
node 223.7723901610545 1.8802e-05 deg
peri 78.15113237135179 2.7026e-05 deg
M 133.1296581992803 1.9242e-05 deg
tp 2458437.819613255630
(2018-Nov-15.31961326)
7.9504e-05 TDB
period 1521.561325762258
4.17
1.2058e-05
3.301e-08
d
yr
n .2365990735336616 1.8749e-09 deg/d
Q 3.085439666459689 1.6301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      9213 days (25.22 yr)  
   first obs. used      1994-11-05  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53205  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:38:35  

Additional Information
 Earth MOID = 1.11743 au 
 Jupiter MOID = 2.22761 au 
 T_jup = 3.364 
[ 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 14.9   n/a MPO502469  
diameter diameter 2.888 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.279   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46974 (1998 SA140)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SA140 = 2001 FJ138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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