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233784 (2008 UR1)
Classification: Main-belt Asteroid          SPK-ID: 2233784
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1417695878633261 5.2223e-08  
a 2.71675104115909 2.3061e-08 au
q 2.331598365726704 1.4162e-07 au
i 12.43550160018781 6.0022e-06 deg
node 180.5964008381463 2.6106e-05 deg
peri 250.2323519176218 3.4479e-05 deg
M 193.8665394026302 2.0301e-05 deg
tp 2459755.292890748193
(2022-Jun-24.79289075)
9.363e-05 TDB
period 1635.585267966489
4.48
2.0826e-05
5.702e-08
d
yr
n .2201046971079565 2.8025e-09 deg/d
Q 3.101903716591476 2.6331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      7141 days (19.55 yr)  
   first obs. used      1999-10-12  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59339  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:23:52  

Additional Information
 Earth MOID = 1.37857 au 
 Jupiter MOID = 2.30961 au 
 T_jup = 3.312 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457042.5 (2015-Jan-20.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435169084601386 5.2204e-08  
q 2.324649209309163 1.4165e-07 au
tp 2456487.803209584940
(2013-Jul-14.30320958)
9.4003e-05 TDB
node 180.6518927311533 2.6101e-05 deg
peri 250.3670793320348 3.4252e-05 deg
i 12.44136327148141 6.0055e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      7141 days (19.55 yr)  
   first obs. used      1999-10-12  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59339  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:23:52  

Additional Information
 Jupiter MOID = 2.30961 au 
 T_jup = 3.312 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.72521188975163E-15 -7.320070171866008E-15 -1.230418380091093E-12 6.52273636938053E-15 -3.122494206976337E-13 -1.228321659878969E-14
q -7.320070171866008E-15 2.006569990970424E-14 2.809890008973093E-12 -1.433915360758559E-14 7.551013846699911E-13 3.564885279790607E-14
tp -1.230418380091093E-12 2.809890008973093E-12 8.836507328243796E-9 -7.135039506015244E-12 2.112955228461256E-9 2.580467598648631E-12
node 6.52273636938053E-15 -1.433915360758559E-14 -7.135039506015244E-12 6.812835949791475E-10 -6.658638271315796E-10 2.931918739849632E-11
peri -3.122494206976337E-13 7.551013846699911E-13 2.112955228461256E-9 -6.658638271315796E-10 1.17321339571452E-9 -2.769041653024048E-11
i -1.228321659878969E-14 3.564885279790607E-14 2.580467598648631E-12 2.931918739849632E-11 -2.769041653024048E-11 3.60656181306047E-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 15.9   n/a MPO470489  

233784 (2008 UR1)          Discovered 2008-Oct-21 by Tucker, R. A. at Goodricke-Pigott
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

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