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74805 (1999 TF)
Classification: Main-belt Asteroid          SPK-ID: 2074805
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2586086001367556 3.9386e-08  
a 2.350006562036489 6.3516e-09 au
q 1.742274654716043 9.2862e-08 au
i 5.36232063810676 3.2554e-06 deg
node 127.3186743623713 4.5324e-05 deg
peri 218.4392529531494 4.5756e-05 deg
M 275.6539931694334 6.7423e-06 deg
tp 2459308.793284945381
(2021-Apr-04.29328495)
2.5081e-05 TDB
period 1315.836833903516
3.60
5.3347e-06
1.461e-08
d
yr
n .2735901524598885 1.1092e-09 deg/d
Q 2.957738469356935 7.9942e-09 au
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      7642 days (20.92 yr)  
   first obs. used      1999-07-16  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5133  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:50:47  

Additional Information
 Earth MOID = .738564 au 
 Jupiter MOID = 2.46463 au 
 T_jup = 3.507 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457367.5 (2015-Dec-11.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2575142675594562 3.9318e-08  
q 1.746450962774329 9.2626e-08 au
tp 2457993.067359654738
(2017-Aug-27.56735965)
2.3897e-05 TDB
node 127.3590610319083 4.5281e-05 deg
peri 218.3173201546733 4.5722e-05 deg
i 5.362712358477374 3.256e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      7642 days (20.92 yr)  
   first obs. used      1999-07-16  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5133  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:50:47  

Additional Information
 Jupiter MOID = 2.46463 au 
 T_jup = 3.507 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.545869709856209E-15 -3.637013002403787E-15 3.842277133688706E-13 3.859245781900789E-14 1.268055116722419E-13 -1.909216855552383E-15
q -3.637013002403787E-15 8.579608071972122E-15 -8.849553929123049E-13 -9.018874713068893E-14 -2.979011997563327E-13 4.625925548556515E-15
tp 3.842277133688706E-13 -8.849553929123049E-13 5.710756256196521E-10 1.780623545487045E-11 1.716565313737082E-10 3.391438141195069E-13
node 3.859245781900789E-14 -9.018874713068893E-14 1.780623545487045E-11 2.050351848001548E-9 -2.034598164553088E-9 2.996155389591629E-11
peri 1.268055116722419E-13 -2.979011997563327E-13 1.716565313737082E-10 -2.034598164553088E-9 2.090543584585961E-9 -2.983140998306849E-11
i -1.909216855552383E-15 4.625925548556515E-15 3.391438141195069E-13 2.996155389591629E-11 -2.983140998306849E-11 1.06014576428247E-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 16.0   n/a MPO266275  

74805 (1999 TF)          Discovered 1999-Oct-02 by Klet at Klet
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1939-Aug-22 06:53 00:04 Europ 0.0116201432036458 0.0116160302585487 0.0116242578350842 3.69898649241612 3.69898624514267 2429497.786771589 4.00827215880535 305.704152866527 47.764663026474 48.6893778364804 27569.2961851639 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 23:51:02 2020-Jun-23 23:51
2152-Apr-18 00:56 00:08 Europ 0.0464074729850983 0.0463959182908263 0.0464190277409555 3.73635956067392 3.73635949937749 2507169.539173868 8.45056859163222 581.806191433228 49.1642392878147 -8.34088193630328 23622.559518862 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 23:51:02 2020-Jun-23 23:51
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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