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379254 (2009 TT39)
Classification: Main-belt Asteroid          SPK-ID: 2379254
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09715831634948946 8.0725e-08  
a 2.639170078082033 3.9693e-08 au
q 2.382752756735632 2.1856e-07 au
i 12.85540715384002 9.4694e-06 deg
node 222.1579539251296 3.8948e-05 deg
peri 101.8978815419364 6.0344e-05 deg
M 228.9290903430784 4.7549e-05 deg
tp 2459570.668614783829
(2021-Dec-22.16861478)
0.00021105 TDB
period 1566.027899397729
4.29
3.5329e-05
9.673e-08
d
yr
n .2298809619793176 5.186e-09 deg/d
Q 2.895587399428434 4.3549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      5188 days (14.20 yr)  
   first obs. used      2005-11-06  
   last obs. used      2020-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:09:30  

Additional Information
 Earth MOID = 1.41224 au 
 Jupiter MOID = 2.39202 au 
 T_jup = 3.354 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457453.5 (2016-Mar-06.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09615628544240201 8.0529e-08  
q 2.386956871109097 2.1771e-07 au
tp 2458002.644512170459
(2017-Sep-06.14451217)
0.00020395 TDB
node 222.1793415146043 3.896e-05 deg
peri 101.4527816367503 6.0784e-05 deg
i 12.85004940174723 9.4671e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      5188 days (14.20 yr)  
   first obs. used      2005-11-06  
   last obs. used      2020-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:09:30  

Additional Information
 Jupiter MOID = 2.39202 au 
 T_jup = 3.354 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.484941424340466E-15 -1.729239621681727E-14 5.483428405317746E-12 6.334571285547973E-15 1.351788321536544E-12 -1.180120512682606E-14
q -1.729239621681727E-14 4.739550502081452E-14 -1.301711956698033E-11 -1.308313324295623E-14 -3.378159332311851E-12 3.522943381745406E-14
tp 5.483428405317746E-12 -1.301711956698033E-11 4.159410758909371E-8 1.082690311296422E-10 9.567529326968896E-9 -8.946718765756369E-12
node 6.334571285547973E-15 -1.308313324295623E-14 1.082690311296422E-10 1.517844663679292E-9 -1.453525805504297E-9 -1.368105941306374E-10
peri 1.351788321536544E-12 -3.378159332311851E-12 9.567529326968896E-9 -1.453525805504297E-9 3.694635361445116E-9 1.307845310914835E-10
i -1.180120512682606E-14 3.522943381745406E-14 -8.946718765756369E-12 -1.368105941306374E-10 1.307845310914835E-10 8.962618586497936E-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 16.5   n/a MPO471888  

379254 (2009 TT39)          Discovered 2009-Oct-14 by CSS at Catalina
Reference: Last Updated: 2013-11-20

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