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266845 (2009 UW43)
Classification: Main-belt Asteroid          SPK-ID: 2266845
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09212683850249914 5.1391e-08  
a 2.667945084057231 2.0981e-08 au
q 2.422155738164754 1.4098e-07 au
i 1.892354164936316 4.9984e-06 deg
node 36.26916178352422 0.00018241 deg
peri 299.8162103406867 0.00018451 deg
M 203.3230033195792 2.8696e-05 deg
tp 2459693.233983077485
(2022-Apr-23.73398308)
0.00012816 TDB
period 1591.709307630983
4.36
1.8776e-05
5.141e-08
d
yr
n .2261719512941752 2.668e-09 deg/d
Q 2.913734429949708 2.2914e-08 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      9450 days (25.87 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59915  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:10  

Additional Information
 Earth MOID = 1.41316 au 
 Jupiter MOID = 2.39097 au 
 T_jup = 3.376 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457270.5 (2015-Sep-05.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09082313844025268 5.1515e-08  
q 2.428108514957183 1.4107e-07 au
tp 2456503.528148360712
(2013-Jul-30.02814836)
0.00012835 TDB
node 36.30367270696171 0.00018252 deg
peri 298.8999873359431 0.00018467 deg
i 1.892409104304305 4.9923e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      9450 days (25.87 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59915  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:10  

Additional Information
 Jupiter MOID = 2.39097 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.653790830648363E-15 -7.201584067509663E-15 -6.710024143427794E-13 3.885994833664213E-15 -1.996242540653814E-13 -7.059030427824654E-16
q -7.201584067509663E-15 1.990077575015485E-14 1.566593288840024E-12 -1.079460756267557E-14 5.215539193662884E-13 2.062689406570457E-15
tp -6.710024143427794E-13 1.566593288840024E-12 1.647390822314305E-8 5.645504134975203E-11 3.651650000549984E-9 4.50167698942036E-13
node 3.885994833664213E-15 -1.079460756267557E-14 5.645504134975203E-11 3.331266004295325E-8 -3.328121778116108E-8 -1.530947888202833E-11
peri -1.996242540653814E-13 5.215539193662884E-13 3.651650000549984E-9 -3.328121778116108E-8 3.410395671711538E-8 1.543076054041103E-11
i -7.059030427824654E-16 2.062689406570457E-15 4.50167698942036E-13 -1.530947888202833E-11 1.543076054041103E-11 2.492287818247569E-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 16.9   n/a MPO418415  

266845 (2009 UW43)          Discovered 2009-Oct-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 UW43 = 2003 GK28 = 2005 WH163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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