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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1427079338165627 5.2275e-08  
a 2.714554926058515 2.3525e-08 au
q 2.327166401329132 1.4168e-07 au
i 12.44070413120695 6.0312e-06 deg
node 180.6379235544594 2.6176e-05 deg
peri 250.1347963327783 3.4424e-05 deg
M 105.7982503064527 2.0151e-05 deg
tp 2458120.410329571121
(2018-Jan-01.91032957)
9.1498e-05 TDB
period 1633.602454235062
4.47
2.1236e-05
5.814e-08
d
yr
n .2203718530580751 2.8647e-09 deg/d
Q 3.101943450787898 2.6883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   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      .59613  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:18:29  

Additional Information
 Earth MOID = 1.37385 au 
 Jupiter MOID = 2.31273 au 
 T_jup = 3.313 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457032.5 (2015-Jan-10.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435187138986636 5.2219e-08  
q 2.324649741092837 1.4167e-07 au
tp 2456487.810720620105
(2013-Jul-14.31072062)
9.4308e-05 TDB
node 180.6518745996908 2.6178e-05 deg
peri 250.3686900995794 3.4343e-05 deg
i 12.44136236947378 6.0316e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      381  
   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      .59613  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:18:29  

Additional Information
 Jupiter MOID = 2.31273 au 
 T_jup = 3.313 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.72682133819815E-15 -7.322863187042442E-15 -1.22091939643602E-12 6.493070923745276E-15 -3.102536021615467E-13 -1.227124286752083E-14
q -7.322863187042442E-15 2.007104911533969E-14 2.79461417425408E-12 -1.439633741826332E-14 7.519694322480394E-13 3.565033685667145E-14
tp -1.22091939643602E-12 2.79461417425408E-12 8.893935230051014E-9 -7.075206144106546E-12 2.12477635304054E-9 2.5711230653451E-12
node 6.493070923745276E-15 -1.439633741826332E-14 -7.075206144106546E-12 6.852865531560733E-10 -6.69749217570336E-10 2.819545370468489E-11
peri -3.102536021615467E-13 7.519694322480394E-13 2.12477635304054E-9 -6.69749217570336E-10 1.179437011384845E-9 -2.659845733668936E-11
i -1.227124286752083E-14 3.565033685667145E-14 2.5711230653451E-12 2.819545370468489E-11 -2.659845733668936E-11 3.638077063260515E-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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