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266861 (2009 UO112)
Classification: Main-belt Asteroid          SPK-ID: 2266861
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1083122327580421 7.9271e-08  
a 3.12584376439119 3.2913e-08 au
q 2.787276647017177 2.46e-07 au
i 11.8196090052424 5.4216e-06 deg
node 127.0460646806564 3.8655e-05 deg
peri 249.9216335842738 4.7912e-05 deg
M 343.1722871474591 2.532e-05 deg
tp 2459094.856521009593
(2020-Sep-02.35652101)
0.00014137 TDB
period 2018.595626221681
5.53
3.1881e-05
8.729e-08
d
yr
n .1783418111698936 2.8167e-09 deg/d
Q 3.464410881765203 3.6477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      8072 days (22.10 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:04  

Additional Information
 Earth MOID = 1.81489 au 
 Jupiter MOID = 2.06763 au 
 T_jup = 3.173 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457841.5 (2017-Mar-29.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1115329496229541 8.1129e-08  
q 2.777945302481236 2.5305e-07 au
tp 2457063.075381821104
(2015-Feb-09.57538182)
0.00014726 TDB
node 127.415358236868 3.8741e-05 deg
peri 247.8455756571744 4.6875e-05 deg
i 11.80362212853771 5.4303e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      8072 days (22.10 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:04  

Additional Information
 Jupiter MOID = 2.06763 au 
 T_jup = 3.173 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.581895560397479E-15 -2.040134701328482E-14 -1.478438082525474E-12 -2.282124135490576E-14 -4.208559545295863E-13 -2.202331694664908E-14
q -2.040134701328482E-14 6.403365386921924E-14 2.437198002769637E-12 7.872264380216784E-14 9.615828639209546E-13 7.156230313896366E-14
tp -1.478438082525474E-12 2.437198002769637E-12 2.168679399306586E-8 4.500713071811748E-11 3.983596401735841E-9 1.924795876863159E-12
node -2.282124135490576E-14 7.872264380216784E-14 4.500713071811748E-11 1.500840791876513E-9 -1.460403854572928E-9 7.703684937635934E-11
peri -4.208559545295863E-13 9.615828639209546E-13 3.983596401735841E-9 -1.460403854572928E-9 2.197247575300393E-9 -7.466351831424832E-11
i -2.202331694664908E-14 7.156230313896366E-14 1.924795876863159E-12 7.703684937635934E-11 -7.466351831424832E-11 2.948823938662444E-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 15.4   n/a MPO450147  
diameter diameter 3.550 km 1.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.106   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266861 (2009 UO112)          Discovered 2009-Oct-25 by La Sagra at La Sagra
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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