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154940 (2004 TF54)
Classification: Main-belt Asteroid          SPK-ID: 2154940
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05351277528132362 4.7189e-08  
a 3.108808366742101 3.4747e-08 au
q 2.942447403219933 1.4995e-07 au
i 3.571410478925599 5.6358e-06 deg
node 56.74779277927974 9.2081e-05 deg
peri 38.76504300968925 0.00010861 deg
M 253.1825694669375 5.9194e-05 deg
tp 2459594.558181047859
(2022-Jan-15.05818105)
0.00033137 TDB
period 2002.116546990278
5.48
3.3567e-05
9.19e-08
d
yr
n .1798097121474657 3.0146e-09 deg/d
Q 3.27516933026427 3.6607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6755 days (18.49 yr)  
   first obs. used      2001-02-20  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60911  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:37:50  

Additional Information
 Earth MOID = 1.9603 au 
 Jupiter MOID = 1.82394 au 
 T_jup = 3.214 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456915.5 (2014-Sep-15.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05073044004895758 4.6589e-08  
q 2.954281341751358 1.4785e-07 au
tp 2457562.245516966148
(2016-Jun-22.74551697)
0.0003476 TDB
node 56.82580079642945 9.1866e-05 deg
peri 33.87396844689134 0.00011064 deg
i 3.577326381950321 5.6393e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6755 days (18.49 yr)  
   first obs. used      2001-02-20  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60911  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:37:50  

Additional Information
 Jupiter MOID = 1.82394 au 
 T_jup = 3.214 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.170540276652987E-15 -6.713320613620581E-15 -1.075126628607652E-12 -3.680762946172084E-15 -1.809742139818682E-13 8.859791255596445E-16
q -6.713320613620581E-15 2.185893493315723E-14 5.101356984576248E-12 4.494279525296717E-15 8.139976979608005E-13 -1.311053833995829E-15
tp -1.075126628607652E-12 5.101356984576248E-12 1.208272117201296E-7 -4.867637500915487E-11 2.14734609460993E-8 2.500746175809136E-12
node -3.680762946172084E-15 4.494279525296717E-15 -4.867637500915487E-11 8.439379093454093E-9 -8.430779175925233E-9 -6.501181842067862E-11
peri -1.809742139818682E-13 8.139976979608005E-13 2.14734609460993E-8 -8.430779175925233E-9 1.22416940979415E-8 6.528094977491646E-11
i 8.859791255596445E-16 -1.311053833995829E-15 2.500746175809136E-12 -6.501181842067862E-11 6.528094977491646E-11 3.180198684387147E-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 15.5   n/a MPO417827  

154940 (2004 TF54)          Discovered 2004-Oct-04 by Spacewatch at Kitt Peak
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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