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245266 (2005 AF54)
Classification: Main-belt Asteroid          SPK-ID: 2245266
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1318820573808983 5.1318e-08  
a 3.086949497367751 3.1094e-08 au
q 2.679836246623962 1.6281e-07 au
i 2.283058253706912 5.9701e-06 deg
node 43.36989340095577 0.00015982 deg
peri 77.74776532747195 0.00016236 deg
M 311.4446922392797 2.7594e-05 deg
tp 2459267.694136831051
(2021-Feb-22.19413683)
0.00015302 TDB
period 1981.037577461161
5.42
2.9932e-05
8.195e-08
d
yr
n .1817229537166909 2.7457e-09 deg/d
Q 3.49406274811154 3.5195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      7276 days (19.92 yr)  
   first obs. used      2000-03-03  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59185  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:41:28  

Additional Information
 Earth MOID = 1.69691 au 
 Jupiter MOID = 1.58308 au 
 T_jup = 3.211 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457271.5 (2015-Sep-06.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304962236496689 5.2523e-08  
q 2.684676947194508 1.6692e-07 au
tp 2457292.534745048231
(2015-Sep-27.03474505)
0.00014681 TDB
node 43.3985219536271 0.00015988 deg
peri 78.82330206899522 0.00016239 deg
i 2.283426501451612 5.9672e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      7276 days (19.92 yr)  
   first obs. used      2000-03-03  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59185  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:41:28  

Additional Information
 Jupiter MOID = 1.58308 au 
 T_jup = 3.211 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.758673692732438E-15 -8.651581570857207E-15 3.826476337390557E-12 -3.048783925583009E-16 7.652943392183627E-13 -1.962832825772265E-15
q -8.651581570857207E-15 2.786127708935878E-14 -1.151301867147825E-11 -9.384615667200668E-16 -2.305629847920094E-12 6.537366485177161E-15
tp 3.826476337390557E-12 -1.151301867147825E-11 2.155179313124006E-8 7.715515852400323E-12 4.240288561860181E-9 -5.124572165692361E-12
node -3.048783925583009E-16 -9.384615667200668E-16 7.715515852400323E-12 2.556198674577323E-8 -2.553990803251046E-8 -4.167923935401852E-10
peri 7.652943392183627E-13 -2.305629847920094E-12 4.240288561860181E-9 -2.553990803251046E-8 2.637090017334217E-8 4.154468333913991E-10
i -1.962832825772265E-15 6.537366485177161E-15 -5.124572165692361E-12 -4.167923935401852E-10 4.154468333913991E-10 3.560802809425795E-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 15.8   n/a MPO413142  
diameter diameter 3.256 km 0.986 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245266 (2005 AF54)          Discovered 2005-Jan-13 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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