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JPL Small-Body Database Browser
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266840 (2009 UN24)
Classification: Main-belt Asteroid          SPK-ID: 2266840
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02949030056960247 4.7744e-08  
a 2.637804315727552 2.6038e-08 au
q 2.560014673612952 1.4136e-07 au
i 2.795579794395818 7.3142e-06 deg
node 65.29029494940727 0.00015237 deg
peri 227.0941768383751 0.00022954 deg
M 277.593624559037 0.00017022 deg
tp 2459358.695891655148
(2021-May-24.19589166)
0.00073815 TDB
period 1564.812434788315
4.28
2.317e-05
6.344e-08
d
yr
n .2300595215098097 3.4064e-09 deg/d
Q 2.715593957842152 2.6806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      243  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      2000-10-06  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58332  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:53  

Additional Information
 Earth MOID = 1.54478 au 
 Jupiter MOID = 2.31859 au 
 T_jup = 3.394 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457486.5 (2016-Apr-08.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0287208680482206 4.7203e-08  
q 2.562564828212732 1.3951e-07 au
tp 2457787.565795422416
(2017-Feb-03.06579542)
0.00076868 TDB
node 65.29961177048698 0.00015235 deg
peri 225.7435537206812 0.00023342 deg
i 2.79572728643545 7.3145e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      243  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      2000-10-06  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58332  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:53  

Additional Information
 Jupiter MOID = 2.31859 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.228115845868346E-15 -6.50832736145124E-15 8.901206071253297E-12 -9.547286750805726E-16 2.127552372389826E-12 -5.623159561766755E-16
q -6.50832736145124E-15 1.946300317421942E-14 -3.026645161600612E-11 -1.60824252829545E-15 -7.213952344785124E-12 2.076889102363194E-15
tp 8.901206071253297E-12 -3.026645161600612E-11 5.908638148594196E-7 7.51581834183066E-10 1.360090405720122E-7 -2.476954246773047E-11
node -9.547286750805726E-16 -1.60824252829545E-15 7.51581834183066E-10 2.32112274540844E-8 -2.300994604951494E-8 -7.124636563291166E-10
peri 2.127552372389826E-12 -7.213952344785124E-12 1.360090405720122E-7 -2.300994604951494E-8 5.448260872197408E-8 7.058794812462033E-10
i -5.623159561766755E-16 2.076889102363194E-15 -2.476954246773047E-11 -7.124636563291166E-10 7.058794812462033E-10 5.350142120787139E-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 MPO433732  

266840 (2009 UN24)          Discovered 2009-Oct-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 UN24 = 2005 WG147 = 2005 WQ133 = 2005 XC118 = 2005 XT112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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