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19418 (1998 FL49)
Classification: Main-belt Asteroid          SPK-ID: 2019418
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1470930421061062 1.6286e-08  
a 2.195289349302664 6.1633e-09 au
q 1.8723775606106 3.4944e-08 au
i 2.011467194480155 6.6159e-07 deg
node 344.7751135433093 1.9689e-05 deg
peri 313.156170207633 2.1305e-05 deg
M 257.5724206624119 5.5098e-06 deg
tp 2459538.526299345158
(2021-Nov-20.02629935)
1.861e-05 TDB
period 1188.053730755307
3.25
5.0032e-06
1.37e-08
d
yr
n .3030165982233223 1.2761e-09 deg/d
Q 2.518201137994726 7.0699e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1988  
   data-arc span      16277 days (44.56 yr)  
   first obs. used      1976-08-28  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50034  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:53:48  

Additional Information
 Earth MOID = .855339 au 
 Jupiter MOID = 2.66737 au 
 T_jup = 3.654 
[ 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 14.44   n/a MPCxxxxx  
diameter diameter 3.702 km 0.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.155   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19418 (1998 FL49)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 FL49 = 1976 QE2 = 1976 SY6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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