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266915 (2009 XX12)
Classification: Main-belt Asteroid          SPK-ID: 2266915
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 .0946811443405751 6.3552e-08  
a 2.57462823832392 2.4148e-08 au
q 2.330859490467852 1.6696e-07 au
i 1.529598553881218 6.5525e-06 deg
node 175.3940442739053 0.00020724 deg
peri 175.2807152589836 0.00020985 deg
M 261.6083761285619 3.2817e-05 deg
tp 2459412.906827736302
(2021-Jul-17.40682774)
0.00013663 TDB
period 1508.9339126983
4.13
2.1229e-05
5.812e-08
d
yr
n .2385790371403623 3.3565e-09 deg/d
Q 2.818396986179987 2.6434e-08 au
  Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      7268 days (19.90 yr)  
   first obs. used      1999-04-16  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:46  

Additional Information
 Earth MOID = 1.32475 au 
 Jupiter MOID = 2.54516 au 
 T_jup = 3.421 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456943.5 (2014-Oct-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09283639965188308 6.3369e-08  
q 2.337688005168944 1.6611e-07 au
tp 2456394.819434715740
(2013-Apr-12.31943472)
0.00015207 TDB
node 175.4377980647229 0.0002077 deg
peri 175.4556527241309 0.00021042 deg
i 1.526638525377491 6.5455e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      7268 days (19.90 yr)  
   first obs. used      1999-04-16  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:46  

Additional Information
 Jupiter MOID = 2.54516 au 
 T_jup = 3.421 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.015689144328857E-15 -1.043152389848395E-14 4.095376489508158E-12 5.627141879338779E-14 7.886279695964184E-13 -1.003393955912799E-16
q -1.043152389848395E-14 2.759290447188419E-14 -1.194889458385004E-11 -1.515643605130514E-13 -2.304480453127925E-12 3.969954319772448E-16
tp 4.095376489508158E-12 -1.194889458385004E-11 2.312527431983344E-8 9.831735296751843E-11 5.139844093504746E-9 -9.188425273894927E-13
node 5.627141879338779E-14 -1.515643605130514E-13 9.831735296751843E-11 4.313911370402643E-8 -4.310244234139075E-8 3.847043957517958E-10
peri 7.886279695964184E-13 -2.304480453127925E-12 5.139844093504746E-9 -4.310244234139075E-8 4.427530578343477E-8 -3.84785728285286E-10
i -1.003393955912799E-16 3.969954319772448E-16 -9.188425273894927E-13 3.847043957517958E-10 -3.84785728285286E-10 4.28432893415723E-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 16.5   n/a MPO427481  
diameter diameter 3.006 km 0.819 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266915 (2009 XX12)          Discovered 2009-Dec-11 by CSS at Catalina
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 XX12 = 2007 EJ131 = 2007 FB48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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