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308505 (2005 TN185)
Classification: Main-belt Asteroid          SPK-ID: 2308505
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1321703377261961 6.4528e-08  
a 3.081703686491512 4.4191e-08 au
q 2.674393869475866 2.0712e-07 au
i 2.634359665245717 6.9401e-06 deg
node 90.65484913246885 0.00019681 deg
peri 164.7933283928557 0.00019971 deg
M 18.05136289497785 3.4782e-05 deg
tp 2458901.418575905232
(2020-Feb-21.91857591)
0.00019038 TDB
period 1975.990005942449
5.41
4.2503e-05
1.164e-07
d
yr
n .1821871562696988 3.9188e-09 deg/d
Q 3.489013503507159 5.0032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      5856 days (16.03 yr)  
   first obs. used      2003-03-30  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:02:07  

Additional Information
 Earth MOID = 1.65966 au 
 Jupiter MOID = 1.55827 au 
 T_jup = 3.213 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456735.5 (2014-Mar-19.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1297274921047464 6.471e-08  
q 2.679829058145115 2.0695e-07 au
tp 2456927.591334574808
(2014-Sep-27.09133457)
0.00018782 TDB
node 90.66430801390992 0.00019682 deg
peri 164.8468947192229 0.00019983 deg
i 2.634589226229522 6.9408e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      5856 days (16.03 yr)  
   first obs. used      2003-03-30  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:02:07  

Additional Information
 Jupiter MOID = 1.55827 au 
 T_jup = 3.213 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.187431529593722E-15 -1.315708768525192E-14 -3.187592441972334E-12 -4.299735523204493E-14 -4.912027270975757E-13 -1.787691700025224E-15
q -1.315708768525192E-14 4.282791674933747E-14 9.970501242926989E-12 1.443525421478978E-13 1.510818089562893E-12 7.073624209407345E-15
tp -3.187592441972334E-12 9.970501242926989E-12 3.527478109995964E-8 1.692485842798673E-10 6.630662906446126E-9 4.588906009038925E-12
node -4.299735523204493E-14 1.443525421478978E-13 1.692485842798673E-10 3.873708383652118E-8 -3.866376236028004E-8 -1.832613104156903E-10
peri -4.912027270975757E-13 1.510818089562893E-12 6.630662906446126E-9 -3.866376236028004E-8 3.993372264038883E-8 1.839366473326229E-10
i -1.787691700025224E-15 7.073624209407345E-15 4.588906009038925E-12 -1.832613104156903E-10 1.839366473326229E-10 4.817474047533028E-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 16.3   n/a MPO433985  

308505 (2005 TN185)          Discovered 2005-Oct-04 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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