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216542 (2001 SF38)
Classification: Main-belt Asteroid          SPK-ID: 2216542
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .210592639382074 4.1149e-08  
a 2.605697250860947 1.2737e-08 au
q 2.056956589371526 1.0741e-07 au
i 14.12696485068984 5.5279e-06 deg
node 21.75240107492391 1.62e-05 deg
peri 307.7840496706821 2.1483e-05 deg
M 279.6828504062264 1.715e-05 deg
tp 2459739.260008940679
(2022-Jun-08.76000894)
7.4549e-05 TDB
period 1536.329461923659
4.21
1.1265e-05
3.084e-08
d
yr
n .234324738880708 1.7181e-09 deg/d
Q 3.154437912350369 1.5419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      7220 days (19.77 yr)  
   first obs. used      2001-08-05  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 19:40:59  

Additional Information
 Earth MOID = 1.07938 au 
 Jupiter MOID = 2.34971 au 
 T_jup = 3.339 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457826.5 (2017-Mar-14.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2098034114210355 4.112e-08  
q 2.060525924488154 1.0715e-07 au
tp 2458201.365393294811
(2018-Mar-23.86539329)
6.9246e-05 TDB
node 21.78023234047436 1.6197e-05 deg
peri 307.5272791398415 2.1509e-05 deg
i 14.1248268686372 5.5268e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      7220 days (19.77 yr)  
   first obs. used      2001-08-05  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 19:40:59  

Additional Information
 Jupiter MOID = 2.34971 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.690822050803161E-15 -4.386230182806545E-15 1.103707395681076E-12 6.916842844886369E-15 2.185698440638651E-13 2.263739421779359E-15
q -4.386230182806545E-15 1.148161289265765E-14 -2.557262828886414E-12 -1.786794057738487E-14 -5.116061501003751E-13 -6.089617836111321E-15
tp 1.103707395681076E-12 -2.557262828886414E-12 4.794997445595853E-9 1.005065362280998E-11 9.914956260419262E-10 -7.768604320605678E-13
node 6.916842844886369E-15 -1.786794057738487E-14 1.005065362280998E-11 2.623502389250768E-10 -2.520759653261375E-10 -2.771720998454312E-12
peri 2.185698440638651E-13 -5.116061501003751E-13 9.914956260419262E-10 -2.520759653261375E-10 4.626526646972365E-10 2.461688734556525E-12
i 2.263739421779359E-15 -6.089617836111321E-15 -7.768604320605678E-13 -2.771720998454312E-12 2.461688734556525E-12 3.054574030372354E-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 15.76   n/a MPO638139  

216542 (2001 SF38)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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