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216656 (2003 UM155)
Classification: Main-belt Asteroid          SPK-ID: 2216656
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .112478924104764 5.5404e-08  
a 2.32862946551659 1.8341e-08 au
q 2.066707728596632 1.3045e-07 au
i 5.039715117309203 6.3632e-06 deg
node 71.89456530721625 9.1139e-05 deg
peri 355.5745802677078 9.8774e-05 deg
M 317.1794121408661 4.1414e-05 deg
tp 2459550.882878469685
(2021-Dec-02.38287847)
0.00015008 TDB
period 1297.923242714929
3.55
1.5334e-05
4.198e-08
d
yr
n .2773661709354789 3.2769e-09 deg/d
Q 2.590551202436548 2.0404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      5659 days (15.49 yr)  
   first obs. used      2003-10-05  
   last obs. used      2019-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60103  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:43  

Additional Information
 Earth MOID = 1.08042 au 
 Jupiter MOID = 2.65669 au 
 T_jup = 3.559 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457118.5 (2015-Apr-06.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134325887778017 5.5603e-08  
q 2.064977096062018 1.31e-07 au
tp 2456954.501460432467
(2014-Oct-24.00146043)
0.00013787 TDB
node 71.98696697432936 9.0991e-05 deg
peri 355.5223819490009 9.8449e-05 deg
i 5.043720274570772 6.3677e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      5659 days (15.49 yr)  
   first obs. used      2003-10-05  
   last obs. used      2019-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60103  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:43  

Additional Information
 Jupiter MOID = 2.65669 au 
 T_jup = 3.559 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.091710857655943E-15 -7.228988341085179E-15 -1.781233655416564E-12 3.982346712261815E-14 -5.346564992932436E-13 -8.731631116850227E-16
q -7.228988341085179E-15 1.716137854260367E-14 4.655109412238965E-12 -9.170288601464893E-14 1.386730726151376E-12 2.539342925197261E-15
tp -1.781233655416564E-12 4.655109412238965E-12 1.90074597199773E-8 -5.182460048239535E-11 5.257548207527984E-9 5.241090600481781E-12
node 3.982346712261815E-14 -9.170288601464893E-14 -5.182460048239535E-11 8.279372998086087E-9 -8.260633855702481E-9 -1.388775434557493E-10
peri -5.346564992932436E-13 1.386730726151376E-12 5.257548207527984E-9 -8.260633855702481E-9 9.692296452393789E-9 1.397339673402012E-10
i -8.731631116850227E-16 2.539342925197261E-15 5.241090600481781E-12 -1.388775434557493E-10 1.397339673402012E-10 4.054819676842244E-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 17.3   n/a MPO433418  

216656 (2003 UM155)          Discovered 2003-Oct-20 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 2003 UM155 = 2007 VV316 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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