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49230 (1998 SL140)
Classification: Main-belt Asteroid          SPK-ID: 2049230
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .246639560811447 6.3604e-08  
a 2.539212671351819 8.6065e-09 au
q 1.912942373282745 1.6458e-07 au
i 2.200453311915504 3.0378e-06 deg
node 276.2697227008674 0.00013629 deg
peri 62.24305837504922 0.00013641 deg
M 56.61950717500763 5.6742e-06 deg
tp 2458368.060128875049
(2018-Sep-06.56012888)
2.304e-05 TDB
period 1477.9067812501
4.05
7.5139e-06
2.057e-08
d
yr
n .2435877584210629 1.2384e-09 deg/d
Q 3.165482969420892 1.0729e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1134  
   data-arc span      10289 days (28.17 yr)  
   first obs. used      1990-11-22  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55251  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:49:37  

Additional Information
 Earth MOID = .904233 au 
 Jupiter MOID = 2.23654 au 
 T_jup = 3.402 
[ 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 15.6   n/a MPO452839  
diameter diameter 1.838 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.330   0.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49230 (1998 SL140)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SL140 = 1996 CM3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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