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379273 (2009 UN98)
Classification: Main-belt Asteroid          SPK-ID: 2379273
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09509478081405798 5.2612e-08  
a 2.438894760957215 2.2958e-08 au
q 2.206968598235434 1.3712e-07 au
i 6.911278395033964 5.6361e-06 deg
node 54.4578437272052 4.7263e-05 deg
peri 29.40150740602054 5.8091e-05 deg
M 247.292041454703 3.6231e-05 deg
tp 2459436.052088797043
(2021-Aug-09.55208880)
0.00014292 TDB
period 1391.195031750295
3.81
1.9644e-05
5.378e-08
d
yr
n .2587703318254922 3.6538e-09 deg/d
Q 2.670820923678995 2.5141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6447 days (17.65 yr)  
   first obs. used      2003-02-25  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:05:34  

Additional Information
 Earth MOID = 1.22552 au 
 Jupiter MOID = 2.5197 au 
 T_jup = 3.487 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458142.5 (2018-Jan-24.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09546639520599604 5.2763e-08  
q 2.205626304184256 1.3775e-07 au
tp 2458040.680055200862
(2017-Oct-14.18005520)
0.00013327 TDB
node 54.50743483681978 4.717e-05 deg
peri 28.38617376971116 5.7919e-05 deg
i 6.919114836068624 5.6423e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6447 days (17.65 yr)  
   first obs. used      2003-02-25  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:05:34  

Additional Information
 Jupiter MOID = 2.5197 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.783930917958681E-15 -7.196340735070802E-15 -1.345971480960803E-12 1.475516523258931E-14 -2.826319504613115E-13 -2.771623325568869E-15
q -7.196340735070802E-15 1.897603938087025E-14 4.358586239982119E-12 -3.280027418454928E-14 9.534999307161731E-13 9.14508486732535E-15
tp -1.345971480960803E-12 4.358586239982119E-12 1.776184566858485E-8 5.147202146392219E-11 4.510114762265775E-9 2.216811855151451E-11
node 1.475516523258931E-14 -3.280027418454928E-14 5.147202146392219E-11 2.225026203138091E-9 -2.194687836827771E-9 -3.472609530302831E-11
peri -2.826319504613115E-13 9.534999307161731E-13 4.510114762265775E-9 -2.194687836827771E-9 3.354589184220625E-9 4.013436985374674E-11
i -2.771623325568869E-15 9.14508486732535E-15 2.216811855151451E-11 -3.472609530302831E-11 4.013436985374674E-11 3.183574498486231E-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 17.4   n/a MPO437555  

379273 (2009 UN98)          Discovered 2009-Oct-23 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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