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213912 (2003 UN103)
Classification: Main-belt Asteroid          SPK-ID: 2213912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1669656679739378 4.8243e-08  
a 2.364091284573695 1.2502e-08 au
q 1.969369204093483 1.121e-07 au
i 4.446120454274761 4.2191e-06 deg
node 112.6116051356176 5.9803e-05 deg
peri 273.8160796147011 6.1499e-05 deg
M 263.7915328155485 1.6557e-05 deg
tp 2459555.317951668413
(2021-Dec-06.81795167)
6.3053e-05 TDB
period 1327.684208456781
3.64
1.0531e-05
2.883e-08
d
yr
n .2711488151376312 2.1508e-09 deg/d
Q 2.758813365053907 1.4589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      463  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51196  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:44:36  

Additional Information
 Earth MOID = .978424 au 
 Jupiter MOID = 2.69636 au 
 T_jup = 3.526 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457411.5 (2016-Jan-24.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660759107293171 4.8139e-08  
q 1.972310183651754 1.1159e-07 au
tp 2456900.967005871560
(2014-Aug-31.46700587)
5.0588e-05 TDB
node 112.6513186436943 5.9786e-05 deg
peri 274.0163465198128 6.1506e-05 deg
i 4.445744824834579 4.2184e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      463  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51196  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:44:36  

Additional Information
 Jupiter MOID = 2.69636 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.31733803282208E-15 -5.349632531156142E-15 9.313107160208286E-13 -1.63515179998546E-14 2.050978028993143E-13 -3.173141627744618E-15
q -5.349632531156142E-15 1.245303642937365E-14 -1.955527348586873E-12 3.711917401627307E-14 -4.099947626488547E-13 7.364647621586499E-15
tp 9.313107160208286E-13 -1.955527348586873E-12 2.559171007059572E-9 -1.842970321390047E-11 7.492106730008321E-10 -2.380418600768637E-12
node -1.63515179998546E-14 3.711917401627307E-14 -1.842970321390047E-11 3.574354703973006E-9 -3.568155336572475E-9 -8.512452526005899E-11
peri 2.050978028993143E-13 -4.099947626488547E-13 7.492106730008321E-10 -3.568155336572475E-9 3.782945009289705E-9 8.43304771874031E-11
i -3.173141627744618E-15 7.364647621586499E-15 -2.380418600768637E-12 -8.512452526005899E-11 8.43304771874031E-11 1.779489461726741E-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 16.95   n/a E2021B55  

213912 (2003 UN103)          Discovered 2003-Oct-20 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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