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74906 (1999 TF129)
Classification: Main-belt Asteroid          SPK-ID: 2074906
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2136148889692996 6.2987e-08  
a 2.550445340641151 1.291e-08 au
q 2.005632242377824 1.6393e-07 au
i 7.251699812318592 6.0532e-06 deg
node 192.7926015965217 4.8614e-05 deg
peri 168.9731108750611 5.1172e-05 deg
M 28.00658480287142 1.9866e-05 deg
tp 2458884.760897621726
(2020-Feb-05.26089762)
8.1466e-05 TDB
period 1487.724303032715
4.07
1.1296e-05
3.093e-08
d
yr
n .2419803180375173 1.8373e-09 deg/d
Q 3.095258438904478 1.5668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      8253 days (22.60 yr)  
   first obs. used      1995-09-18  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57383  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:45:28  

Additional Information
 Earth MOID = 1.00371 au 
 Jupiter MOID = 2.37007 au 
 T_jup = 3.397 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455971.5 (2012-Feb-14.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157577037142959 6.3008e-08  
q 2.000125797491938 1.6413e-07 au
tp 2455911.437787765924
(2011-Dec-15.93778777)
6.5534e-05 TDB
node 192.911002783523 4.848e-05 deg
peri 169.2079176884511 5.096e-05 deg
i 7.262084119654761 6.0643e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      8253 days (22.60 yr)  
   first obs. used      1995-09-18  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57383  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:45:28  

Additional Information
 Jupiter MOID = 2.37007 au 
 T_jup = 3.397 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.969965112784301E-15 -1.03239385541835E-14 -2.370403437018424E-12 -1.832449360171064E-14 -5.055699767229588E-13 -7.994666850050298E-15
q -1.03239385541835E-14 2.693897077488173E-14 6.385760826422588E-12 4.808481598342198E-14 1.36742214389404E-12 2.123563670207782E-14
tp -2.370403437018424E-12 6.385760826422588E-12 4.294749873228915E-9 1.933290267190499E-11 1.066916440310677E-9 8.076123287709291E-12
node -1.832449360171064E-14 4.808481598342198E-14 1.933290267190499E-11 2.350310395307169E-9 -2.326952747004294E-9 -1.286962902171913E-10
peri -5.055699767229588E-13 1.36742214389404E-12 1.066916440310677E-9 -2.326952747004294E-9 2.59694238136124E-9 1.296900814750658E-10
i -7.994666850050298E-15 2.123563670207782E-14 8.076123287709291E-12 -1.286962902171913E-10 1.296900814750658E-10 3.677627756060253E-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 15.6   n/a MPO439564  

74906 (1999 TF129)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TF129 = 1995 SR18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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