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243511 (2009 WF129)
Classification: Main-belt Asteroid          SPK-ID: 2243511
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08975994938696939 4.8389e-08  
a 2.574570301363401 1.9057e-08 au
q 2.343477001419828 1.2441e-07 au
i 11.53071946283062 5.3125e-06 deg
node 52.20765499180336 2.6178e-05 deg
peri 209.8374951373289 4.9935e-05 deg
M 348.5443947726345 4.531e-05 deg
tp 2459048.514354856747
(2020-Jul-18.01435486)
0.00018988 TDB
period 1508.882979586055
4.13
1.6753e-05
4.587e-08
d
yr
n .2385870904970788 2.6491e-09 deg/d
Q 2.805663601306975 2.0768e-08 au
  Orbit Determination Parameters
   # obs. used (total)      278  
   data-arc span      9164 days (25.09 yr)  
   first obs. used      1995-04-25  
   last obs. used      2020-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59187  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:56:04  

Additional Information
 Earth MOID = 1.33561 au 
 Jupiter MOID = 2.23675 au 
 T_jup = 3.394 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457588.5 (2016-Jul-19.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0889628054234278 4.8496e-08  
q 2.345286579226888 1.2459e-07 au
tp 2457538.060553405690
(2016-May-29.56055341)
0.00019248 TDB
node 52.21821361723842 2.6174e-05 deg
peri 209.4586662217939 5.0175e-05 deg
i 11.53165719500291 5.3128e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      278  
   data-arc span      9164 days (25.09 yr)  
   first obs. used      1995-04-25  
   last obs. used      2020-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59187  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:56:04  

Additional Information
 Jupiter MOID = 2.23675 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.351826110298637E-15 -5.982788810179723E-15 -2.382879714126981E-12 7.140612953353614E-15 -4.98051851782292E-13 5.324804516739386E-15
q -5.982788810179723E-15 1.55219004957356E-14 5.708518741883117E-12 -1.686263369996693E-14 1.187477925238759E-12 -1.319960527024867E-14
tp -2.382879714126981E-12 5.708518741883117E-12 3.704998482878413E-8 -1.485938216978832E-10 8.272297535287985E-9 3.780195127477862E-11
node 7.140612953353614E-15 -1.686263369996693E-14 -1.485938216978832E-10 6.850672046695792E-10 -7.032216837972731E-10 -1.261580843353147E-11
peri -4.98051851782292E-13 1.187477925238759E-12 8.272297535287985E-9 -7.032216837972731E-10 2.517564592291438E-9 2.082370308655708E-11
i 5.324804516739386E-15 -1.319960527024867E-14 3.780195127477862E-11 -1.261580843353147E-11 2.082370308655708E-11 2.822616412408299E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO475966  
diameter diameter 3.166 km 0.728 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243511 (2009 WF129)          Discovered 2009-Nov-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2009 WF129 = 1995 HJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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