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469861 (2005 UW23)
Classification: Main-belt Asteroid          SPK-ID: 2469861
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2387156653080274 9.8366e-08  
a 2.415374528893927 1.7536e-08 au
q 1.83878679126095 2.4675e-07 au
i 3.114122092651262 6.1912e-06 deg
node 229.7912573870566 0.00015195 deg
peri 127.6411726938344 0.00015283 deg
M 343.7432075660182 1.7159e-05 deg
tp 2459062.416658450345
(2020-Jul-31.91665845)
6.5817e-05 TDB
period 1371.119003496102
3.75
1.4932e-05
4.088e-08
d
yr
n .2625592666151267 2.8593e-09 deg/d
Q 2.991962266526904 2.1722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      6486 days (17.76 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55031  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:45  

Additional Information
 Earth MOID = .836974 au 
 Jupiter MOID = 2.47138 au 
 T_jup = 3.476 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457303.5 (2015-Oct-08.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2397067266220971 9.8082e-08  
q 1.83568041407145 2.4595e-07 au
tp 2457692.523718330704
(2016-Oct-31.02371833)
5.6449e-05 TDB
node 229.8189970139958 0.00015184 deg
peri 127.8884741278149 0.00015272 deg
i 3.115599251550108 6.1969e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      6486 days (17.76 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55031  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:45  

Additional Information
 Jupiter MOID = 2.47138 au 
 T_jup = 3.476 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.620135907053299E-15 -2.410488083947036E-14 -2.747681566336264E-12 1.529956388574834E-14 -5.441891138056602E-13 -2.881151966054017E-14
q -2.410488083947036E-14 6.049381597218379E-14 7.027380073751892E-12 -3.6627931110913E-14 1.390027592390218E-12 7.276123414553319E-14
tp -2.747681566336264E-12 7.027380073751892E-12 3.186528097200952E-9 -1.233757805682373E-11 9.651845260194606E-10 1.233608150306072E-11
node 1.529956388574834E-14 -3.6627931110913E-14 -1.233757805682373E-11 2.305654207647383E-8 -2.302736050595789E-8 -2.738870579172684E-10
peri -5.441891138056602E-13 1.390027592390218E-12 9.651845260194606E-10 -2.302736050595789E-8 2.332327302530906E-8 2.764295161551462E-10
i -2.881151966054017E-14 7.276123414553319E-14 1.233608150306072E-11 -2.738870579172684E-10 2.764295161551462E-10 3.840151592565913E-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 17.9   n/a MPO437770  

469861 (2005 UW23)          Discovered 2005-Oct-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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