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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 ]

[ 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 .09212683952303266 5.1338e-08  
a 2.667945085576471 2.0515e-08 au
q 2.422155736821304 1.4096e-07 au
i 1.892352406969029 4.8584e-06 deg
node 36.26911032464458 0.00017881 deg
peri 299.8162585272382 0.00018076 deg
M 203.3230059009506 2.7866e-05 deg
tp 2459693.233972255878
(2022-Apr-23.73397226)
0.00012493 TDB
period 1591.709308990561
4.36
1.8359e-05
5.026e-08
d
yr
n .2261719511009876 2.6088e-09 deg/d
Q 2.913734434331638 2.2405e-08 au
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      9509 days (26.03 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:09  

Additional Information
 Earth MOID = 1.41316 au 
 Jupiter MOID = 2.39097 au 
 T_jup = 3.376 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457365.5 (2015-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09080330833189018 5.1403e-08  
q 2.428161676760566 1.4086e-07 au
tp 2458098.750504455864
(2017-Dec-11.25050446)
0.00012358 TDB
node 36.29215248164846 0.00017882 deg
peri 299.1149916707922 0.00018082 deg
i 1.892640423700751 4.8546e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      9509 days (26.03 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:09  

Additional Information
 Jupiter MOID = 2.39097 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.64224851438775E-15 -7.177826265997475E-15 -6.824472633718346E-13 8.516919695404728E-15 -1.782558865647766E-13 -5.738330505166555E-16
q -7.177826265997475E-15 1.984070869805753E-14 2.059666343924496E-12 -2.323120460052189E-14 4.92654295919983E-13 1.712016389853087E-15
tp -6.824472633718346E-13 2.059666343924496E-12 1.527091537867925E-8 4.530718744918543E-11 3.358261764030141E-9 4.712313308094151E-13
node 8.516919695404728E-15 -2.323120460052189E-14 4.530718744918543E-11 3.197573406305601E-8 -3.194763420777537E-8 -5.77364976605964E-11
peri -1.782558865647766E-13 4.92654295919983E-13 3.358261764030141E-9 -3.194763420777537E-8 3.269657508104267E-8 5.779841381272668E-11
i -5.738330505166555E-16 1.712016389853087E-15 4.712313308094151E-13 -5.77364976605964E-11 5.779841381272668E-11 2.356668491311354E-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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