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49240 (1998 SF164)
Classification: Main-belt Asteroid          SPK-ID: 2049240
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04187660441472076 5.8181e-08  
a 2.728518337045799 1.7816e-08 au
q 2.61425725400702 1.5696e-07 au
i 11.71287350769125 5.9647e-06 deg
node 49.62188270731604 2.3428e-05 deg
peri 341.7201643769103 5.6606e-05 deg
M 203.1556689715646 5.2236e-05 deg
tp 2459317.724419271136
(2021-Apr-13.22441927)
0.00024024 TDB
period 1646.223291875291
4.51
1.6123e-05
4.414e-08
d
yr
n .2186823633080218 2.1418e-09 deg/d
Q 2.842779420084577 1.8562e-08 au
  Orbit Determination Parameters
   # obs. used (total)      913  
   data-arc span      7538 days (20.64 yr)  
   first obs. used      1998-09-18  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55123  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:30  

Additional Information
 Earth MOID = 1.62297 au 
 Jupiter MOID = 2.35691 au 
 T_jup = 3.324 
[ 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 14.5   n/a MPO474372  
diameter diameter 3.528 km 0.790 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.171   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49240 (1998 SF164)          Discovered 1998-Sep-18 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SF164 = 2000 EL116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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