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39449 (3486 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039449
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1830715867213153 4.4082e-08  
a 3.186840493974525 2.1242e-08 au
q 2.603420548114868 1.4332e-07 au
i .6934067321744979 4.4023e-06 deg
node 322.5449992662677 0.0004512 deg
peri 107.5305956089569 0.00045139 deg
M 143.9725881895444 1.4012e-05 deg
tp 2458169.470905986040
(2018-Feb-19.97090599)
7.7697e-05 TDB
period 2077.968296653514
5.69
2.0776e-05
5.688e-08
d
yr
n .1732461465267616 1.7322e-09 deg/d
Q 3.770260439834181 2.5131e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      15601 days (42.71 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:21:15  

Additional Information
 Earth MOID = 1.61794 au 
 Jupiter MOID = 1.53121 au 
 T_jup = 3.171 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457273.5 (2015-Sep-08.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1840103793751462 4.4014e-08  
q 2.600952597864944 1.4326e-07 au
tp 2458170.678036417635
(2018-Feb-21.17803642)
7.7428e-05 TDB
node 322.5729040716926 0.000451 deg
peri 107.8334667501204 0.00045118 deg
i .6937409339895437 4.4024e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      15601 days (42.71 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:21:15  

Additional Information
 Jupiter MOID = 1.53121 au 
 T_jup = 3.171 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.93720440412218E-15 -6.259285347071438E-15 -1.035650357130659E-12 -4.54602547858956E-15 -1.930948400746009E-13 -1.658146227147714E-16
q -6.259285347071438E-15 2.052342040225118E-14 3.747293591802253E-12 2.674485882808104E-14 6.546954927623989E-13 5.843416418794856E-16
tp -1.035650357130659E-12 3.747293591802253E-12 5.995145981059705E-9 7.269302780959851E-12 1.048018472794171E-9 1.766324852244905E-13
node -4.54602547858956E-15 2.674485882808104E-14 7.269302780959851E-12 2.033971911416407E-7 -2.033810621354341E-7 3.573056160035506E-10
peri -1.930948400746009E-13 6.546954927623989E-13 1.048018472794171E-9 -2.033810621354341E-7 2.035653260128223E-7 -3.572532613411286E-10
i -1.658146227147714E-16 5.843416418794856E-16 1.766324852244905E-13 3.573056160035506E-10 -3.572532613411286E-10 1.938150260772093E-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 15.2   n/a MPO436046  

39449 (3486 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 3486 T-3 = 2000 UU77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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