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392226 (2009 UB141)
Classification: Jupiter Trojan          SPK-ID: 2392226
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08557053666330726 2.4562e-07  
a 5.2505245219062 4.1846e-07 au
q 4.801234320802832 1.2841e-06 au
i 21.47788789993229 2.3362e-05 deg
node 39.20374739774683 3.6273e-05 deg
peri 13.95603718711486 0.000126 deg
M 306.660258015896 0.00014824 deg
tp 2459651.604764583392
(2022-Mar-13.10476458)
0.0018716 TDB
period 4394.429116658924
12.03
0.00052534
1.438e-06
d
yr
n .08192190394772082 9.7936e-09 deg/d
Q 5.699814723009569 4.5427e-07 au
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      6737 days (18.44 yr)  
   first obs. used      1997-11-01  
   last obs. used      2016-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59523  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 21:23:44  

Additional Information
 Earth MOID = 3.81482 au 
 Jupiter MOID = .15458 au 
 T_jup = 2.854 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456409.5 (2013-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08611679986172727 2.4481e-07  
q 4.790263303402862 1.2672e-06 au
tp 2455272.788805620490
(2010-Mar-17.28880562)
0.0014587 TDB
node 39.2138421055846 3.625e-05 deg
peri 14.48156409909368 0.00012506 deg
i 21.49940671439155 2.3381e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      6737 days (18.44 yr)  
   first obs. used      1997-11-01  
   last obs. used      2016-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59523  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 21:23:44  

Additional Information
 Jupiter MOID = .15458 au 
 T_jup = 2.854 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.993051292047442E-14 -2.956911045050063E-13 1.059544917110184E-11 2.137953710527704E-13 -1.727966914403253E-12 -6.951678533396365E-14
q -2.956911045050063E-13 1.605827341399691E-12 3.148189198851795E-10 -9.351780828711742E-13 4.056643839706429E-11 2.885302758796121E-13
tp 1.059544917110184E-11 3.148189198851795E-10 2.127858325274107E-6 3.862526298924926E-10 1.739341342700957E-7 -5.345180035646873E-10
node 2.137953710527704E-13 -9.351780828711742E-13 3.862526298924926E-10 1.314076990638262E-9 -1.19685787048469E-9 -1.940504062477923E-10
peri -1.727966914403253E-12 4.056643839706429E-11 1.739341342700957E-7 -1.19685787048469E-9 1.563932960187885E-8 1.407351246544261E-10
i -6.951678533396365E-14 2.885302758796121E-13 -5.345180035646873E-10 -1.940504062477923E-10 1.407351246544261E-10 5.466540932820491E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO254794  

392226 (2009 UB141)          Discovered 1997-Nov-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2009 UB141 = 2010 VT173 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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