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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08037294546240963 4.7774e-08  
a 3.070700068976461 2.0888e-08 au
q 2.823898859801198 1.5013e-07 au
i 10.79773049758327 6.3115e-06 deg
node 353.3934353376881 2.004e-05 deg
peri 140.1002646845549 3.9838e-05 deg
M 31.67975563013233 3.2552e-05 deg
tp 2458827.544711094518
(2019-Dec-10.04471109)
0.00017784 TDB
period 1965.416170911087
5.38
2.0054e-05
5.49e-08
d
yr
n .1831673135329494 1.869e-09 deg/d
Q 3.317501278151723 2.2567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      7711 days (21.11 yr)  
   first obs. used      1999-03-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:06:00  

Additional Information
 Earth MOID = 1.84629 au 
 Jupiter MOID = 1.70488 au 
 T_jup = 3.199 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457079.5 (2015-Feb-26.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08188388175614324 4.7878e-08  
q 2.819176887288154 1.5089e-07 au
tp 2456863.953300983404
(2014-Jul-25.45330098)
0.00017622 TDB
node 353.4164444692066 2.0039e-05 deg
peri 140.4394003778976 3.9156e-05 deg
i 10.79912411234602 6.3119e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      7711 days (21.11 yr)  
   first obs. used      1999-03-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:06:00  

Additional Information
 Jupiter MOID = 1.70488 au 
 T_jup = 3.199 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.292292328958819E-15 -7.167123872460648E-15 4.224970717895844E-12 3.295706179306624E-15 8.155943913692123E-13 -2.322539431489232E-15
q -7.167123872460648E-15 2.276723815051268E-14 -1.364007345730859E-11 -1.000807153447857E-14 -2.623613026057945E-12 6.960086401730897E-15
tp 4.224970717895844E-12 -1.364007345730859E-11 3.105475913975081E-8 3.199899192546715E-12 5.938470016796249E-9 7.973114797826766E-12
node 3.295706179306624E-15 -1.000807153447857E-14 3.199899192546715E-12 4.015482088758164E-10 -3.933019849883643E-10 3.518648978840592E-12
peri 8.155943913692123E-13 -2.623613026057945E-12 5.938470016796249E-9 -3.933019849883643E-10 1.533155683100236E-9 -1.953947452049848E-12
i -2.322539431489232E-15 6.960086401730897E-15 7.973114797826766E-12 3.518648978840592E-12 -1.953947452049848E-12 3.984027727387784E-11

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 13.8   n/a MPO337819  
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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