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JPL Small-Body Database Browser
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154629 (2003 UM263)
Classification: Outer Main-belt Asteroid          SPK-ID: 2154629
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 .1608369830047473 6.4542e-08  
a 3.953739170784609 4.1858e-08 au
q 3.317831690967921 2.4619e-07 au
i 9.410624332160451 6.8724e-06 deg
node 175.7703974394628 3.4406e-05 deg
peri 204.9580494394601 3.8452e-05 deg
M 46.58491039818336 1.5468e-05 deg
tp 2458628.919244242961
(2019-May-25.41924424)
0.00012277 TDB
period 2871.510773105418
7.86
4.5601e-05
1.248e-07
d
yr
n .1253695453180122 1.9909e-09 deg/d
Q 4.589646650601297 4.859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:33:20  

Additional Information
 Earth MOID = 2.32323 au 
 Jupiter MOID = .89071 au 
 T_jup = 3.014 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457257.5 (2015-Aug-23.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .159248527732375 6.448e-08  
q 3.32058015600001 2.4502e-07 au
tp 2458631.182310122001
(2019-May-27.68231012)
0.0001237 TDB
node 175.7912125211074 3.4391e-05 deg
peri 205.1269315840729 3.8542e-05 deg
i 9.413747323616715 6.8752e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:33:20  

Additional Information
 Jupiter MOID = .89071 au 
 T_jup = 3.014 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.157706199551813E-15 -1.565168353154627E-14 7.09174227762055E-13 -1.108797544824075E-15 1.046535272435084E-14 -8.072749046512778E-15
q -1.565168353154627E-14 6.003661439107581E-14 -2.596790270782816E-12 1.315427347315564E-14 -1.288402623988514E-13 3.703780538557829E-14
tp 7.09174227762055E-13 -2.596790270782816E-12 1.530226794825318E-8 1.564515572965863E-11 2.168239051600527E-9 -3.311929128923707E-12
node -1.108797544824075E-15 1.315427347315564E-14 1.564515572965863E-11 1.182733763793461E-9 -1.164328485556305E-9 8.100302331074063E-11
peri 1.046535272435084E-14 -1.288402623988514E-13 2.168239051600527E-9 -1.164328485556305E-9 1.485500611969916E-9 -8.043067352248925E-11
i -8.072749046512778E-15 3.703780538557829E-14 -3.311929128923707E-12 8.100302331074063E-11 -8.043067352248925E-11 4.726852792900206E-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 14.5   n/a MPO454004  

154629 (2003 UM263)          Discovered 2003-Oct-27 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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