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74970 (1999 TF217)
Classification: Main-belt Asteroid          SPK-ID: 2074970
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0992343811575877 4.0628e-08  
a 2.208841350811168 8.5225e-09 au
q 1.989648346288132 9.1007e-08 au
i 6.120567129117342 3.685e-06 deg
node 51.88088356355424 4.2768e-05 deg
peri 112.3691571665732 4.6892e-05 deg
M 335.1092864062988 1.9664e-05 deg
tp 2459083.404873246506
(2020-Aug-21.90487325)
6.5654e-05 TDB
period 1199.07186495027
3.28
6.9397e-06
1.9e-08
d
yr
n .3002322133669032 1.7376e-09 deg/d
Q 2.428034355334205 9.3682e-09 au
  Orbit Determination Parameters
   # obs. used (total)      956  
   data-arc span      7420 days (20.31 yr)  
   first obs. used      1999-10-09  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:25:02  

Additional Information
 Earth MOID = 1.00562 au 
 Jupiter MOID = 2.55093 au 
 T_jup = 3.645 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456767.5 (2014-Apr-20.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09904028383654308 4.0697e-08  
q 1.989788726200978 9.1131e-08 au
tp 2456685.627464546049
(2014-Jan-28.12746455)
6.2522e-05 TDB
node 51.89925215332834 4.2769e-05 deg
peri 112.446833120882 4.6898e-05 deg
i 6.121051299366025 3.6849e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      956  
   data-arc span      7420 days (20.31 yr)  
   first obs. used      1999-10-09  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:25:02  

Additional Information
 Jupiter MOID = 2.55093 au 
 T_jup = 3.645 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.656253241171176E-15 -3.695857610982022E-15 -2.55671202607024E-13 -1.092488412462911E-14 -6.351800613293158E-14 -1.39323934050041E-15
q -3.695857610982022E-15 8.30487144595413E-15 6.244700196982311E-13 2.42012223194648E-14 1.593003459361999E-13 3.338283210950929E-15
tp -2.55671202607024E-13 6.244700196982311E-13 3.909025987282546E-9 -7.88808896434199E-12 1.223605618007584E-9 7.432914418818652E-13
node -1.092488412462911E-14 2.42012223194648E-14 -7.88808896434199E-12 1.829221418373081E-9 -1.820905377387057E-9 -1.249976103561861E-11
peri -6.351800613293158E-14 1.593003459361999E-13 1.223605618007584E-9 -1.820905377387057E-9 2.199377192203193E-9 1.267447464333458E-11
i -1.39323934050041E-15 3.338283210950929E-15 7.432914418818652E-13 -1.249976103561861E-11 1.267447464333458E-11 1.357845613379178E-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 15.7   n/a MPO319944  
diameter diameter 2.166 km 0.349 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.261   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74970 (1999 TF217)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TF217 = 2001 FJ167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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