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233808 (2008 UD145)
Classification: Main-belt Asteroid          SPK-ID: 2233808
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05841791460107123 6.9682e-08  
a 2.675831497668389 2.7244e-08 au
q 2.519515001750741 1.8651e-07 au
i 2.283026696026991 6.1594e-06 deg
node 86.97853407850552 0.00017694 deg
peri 140.0678899827502 0.00018303 deg
M 55.48279789728574 4.5829e-05 deg
tp 2458754.099024922156
(2019-Sep-27.59902492)
0.00020338 TDB
period 1598.772130998885
4.38
2.4417e-05
6.685e-08
d
yr
n .2251728016894305 3.439e-09 deg/d
Q 2.832147993586038 2.8836e-08 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      6627 days (18.14 yr)  
   first obs. used      2001-02-17  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:24:13  

Additional Information
 Earth MOID = 1.50993 au 
 Jupiter MOID = 2.14048 au 
 T_jup = 3.375 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456918.5 (2014-Sep-18.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05701833030486961 6.9964e-08  
q 2.521605339587068 1.8648e-07 au
tp 2457152.290487655653
(2015-May-09.79048766)
0.00020767 TDB
node 86.9878789799205 0.00017689 deg
peri 139.0182036192887 0.00018323 deg
i 2.28365574170809 6.1637e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      6627 days (18.14 yr)  
   first obs. used      2001-02-17  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:24:13  

Additional Information
 Jupiter MOID = 2.14048 au 
 T_jup = 3.375 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.89501104694277E-15 -1.292446730057232E-14 -2.000522247569943E-12 -3.554714440358744E-14 -3.307828492249798E-13 -1.706968968294483E-15
q -1.292446730057232E-14 3.477461984258348E-14 4.928631146979157E-12 9.348360396442158E-14 7.699590551088198E-13 4.82088488512229E-15
tp -2.000522247569943E-12 4.928631146979157E-12 4.312617229626139E-8 -4.452220396909576E-11 9.981127613227387E-9 2.486294363779398E-12
node -3.554714440358744E-14 9.348360396442158E-14 -4.452220396909576E-11 3.129037124930729E-8 -3.127600338317521E-8 -4.309565317143973E-10
peri -3.307828492249798E-13 7.699590551088198E-13 9.981127613227387E-9 -3.127600338317521E-8 3.357236876977394E-8 4.311379811936689E-10
i -1.706968968294483E-15 4.82088488512229E-15 2.486294363779398E-12 -4.309565317143973E-10 4.311379811936689E-10 3.799119984356213E-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 16.6   n/a MPO433527  

233808 (2008 UD145)          Discovered 2008-Oct-23 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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