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393960 (2005 UY239)
Classification: Main-belt Asteroid          SPK-ID: 2393960
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1748039063907323 7.9509e-08  
a 2.210729444744054 1.4552e-08 au
q 1.824285301829779 1.734e-07 au
i 4.00295282368214 7.568e-06 deg
node 143.0293294677189 0.00013444 deg
peri 191.697895735418 0.00013717 deg
M 211.4891533190046 2.7797e-05 deg
tp 2459495.787643925878
(2021-Oct-08.28764393)
9.3925e-05 TDB
period 1200.609624132814
3.29
1.1854e-05
3.245e-08
d
yr
n .2998476713528126 2.9606e-09 deg/d
Q 2.597173587658329 1.7096e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      5300 days (14.51 yr)  
   first obs. used      2004-04-14  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60731  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:10:39  

Additional Information
 Earth MOID = .814457 au 
 Jupiter MOID = 2.76308 au 
 T_jup = 3.634 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457205.5 (2015-Jul-02.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1753985681396963 7.964e-08  
q 1.82296881217573 1.7375e-07 au
tp 2457093.358985241550
(2015-Mar-11.85898524)
8.9619e-05 TDB
node 143.0703573248003 0.00013436 deg
peri 191.4584056472266 0.00013706 deg
i 4.00399172668977 7.5716e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      5300 days (14.51 yr)  
   first obs. used      2004-04-14  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60731  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:10:39  

Additional Information
 Jupiter MOID = 2.76308 au 
 T_jup = 3.634 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.342451564975316E-15 -1.380631230211172E-14 4.472653180276531E-12 1.264221826070769E-13 1.238754316006015E-12 -7.037398247878431E-16
q -1.380631230211172E-14 3.018877617957851E-14 -9.858074481351356E-12 -2.674635877223254E-13 -2.740591987279733E-12 1.973359037531885E-15
tp 4.472653180276531E-12 -9.858074481351356E-12 8.031516749290833E-9 9.278463555889713E-11 2.520190732098589E-9 -3.425506697197467E-12
node 1.264221826070769E-13 -2.674635877223254E-13 9.278463555889713E-11 1.805292955975631E-8 -1.798040764594262E-8 5.547051125163638E-10
peri 1.238754316006015E-12 -2.740591987279733E-12 2.520190732098589E-9 -1.798040764594262E-8 1.878647119856569E-8 -5.545116815715437E-10
i -7.037398247878431E-16 1.973359037531885E-15 -3.425506697197467E-12 5.547051125163638E-10 -5.545116815715437E-10 5.732944399331069E-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 18.2   n/a MPO472043  

393960 (2005 UY239)          Discovered 2005-Oct-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-05-15

[ show close-approach data ]
Alternate Designations
 2005 UY239 = 2008 SJ135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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