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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08037294851039074 4.7683e-08  
a 3.070700064570565 2.057e-08 au
q 2.823898846389981 1.4963e-07 au
i 10.7977307416982 6.307e-06 deg
node 353.3934400633868 1.9632e-05 deg
peri 140.1002564217925 3.9508e-05 deg
M 31.67976048036367 3.2321e-05 deg
tp 2458827.544684986970
(2019-Dec-10.04468499)
0.00017662 TDB
period 1965.416166681066
5.38
1.9749e-05
5.407e-08
d
yr
n .183167313927167 1.8405e-09 deg/d
Q 3.317501282751149 2.2224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      7754 days (21.23 yr)  
   first obs. used      1999-03-19  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55065  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:22  

Additional Information
 Earth MOID = 1.84629 au 
 Jupiter MOID = 1.70488 au 
 T_jup = 3.199 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457177.5 (2015-Jun-04.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0817348346317477 4.7783e-08  
q 2.819075247222612 1.5024e-07 au
tp 2456863.545510540181
(2014-Jul-25.04551054)
0.00017582 TDB
node 353.4172559584118 1.963e-05 deg
peri 140.3546823041259 3.8901e-05 deg
i 10.79966950444608 6.3078e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      7754 days (21.23 yr)  
   first obs. used      1999-03-19  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55065  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:22  

Additional Information
 Jupiter MOID = 1.70488 au 
 T_jup = 3.199 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.283210134581132E-15 -7.123440544108007E-15 4.282262337595546E-12 5.643463338577052E-15 8.232079744217681E-13 -2.184347050527951E-15
q -7.123440544108007E-15 2.257279418836272E-14 -1.386905185475212E-11 -1.730080430540114E-14 -2.655175358025513E-12 6.455902424965414E-15
tp 4.282262337595546E-12 -1.386905185475212E-11 3.091307771801859E-8 9.473058471788998E-12 5.914460575047323E-9 7.998020493152503E-12
node 5.643463338577052E-15 -1.730080430540114E-14 9.473058471788998E-12 3.853370519084547E-10 -3.761526900548151E-10 2.702524170531177E-12
peri 8.232079744217681E-13 -2.655175358025513E-12 5.914460575047323E-9 -3.761526900548151E-10 1.513267884742563E-9 -1.141126982598221E-12
i -2.184347050527951E-15 6.455902424965414E-15 7.998020493152503E-12 2.702524170531177E-12 -1.141126982598221E-12 3.978809542452206E-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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