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74515 (1999 FL28)
Classification: Main-belt Asteroid          SPK-ID: 2074515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08022364717784833 4.7396e-08  
a 3.069969636217028 2.0497e-08 au
q 2.823685475274446 1.4867e-07 au
i 10.79863392107887 6.279e-06 deg
node 353.3945746651871 1.9608e-05 deg
peri 139.9767154343385 3.9514e-05 deg
M 68.44445245221746 3.2317e-05 deg
tp 2458826.961560833741
(2019-Dec-09.46156083)
0.0001767 TDB
period 1964.714937178179
5.38
1.9677e-05
5.387e-08
d
yr
n .183232688461691 1.8351e-09 deg/d
Q 3.316253797159611 2.2142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1197  
   data-arc span      8035 days (22.00 yr)  
   first obs. used      1999-03-19  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54849  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:20:05  

Additional Information
 Earth MOID = 1.84603 au 
 Jupiter MOID = 1.70552 au 
 T_jup = 3.199 
[ 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 13.87   n/a E2021B10  
diameter diameter 6.934 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.164   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74515 (1999 FL28)          Discovered 1999-Mar-19 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 FL28 = 1999 GX51 = 2001 QO18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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