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227246 (2005 SF46)
Classification: Main-belt Asteroid          SPK-ID: 2227246
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07014674869678665 4.8413e-08  
a 2.377290788355558 1.4178e-08 au
q 2.210531568845595 1.1852e-07 au
i 6.373559422734499 5.0523e-06 deg
node 208.3956003265165 4.5294e-05 deg
peri 272.5368690828707 6.0273e-05 deg
M 316.9082088088814 3.7997e-05 deg
tp 2459360.755865542064
(2021-May-26.25586554)
0.00014125 TDB
period 1338.819065080629
3.67
1.1977e-05
3.279e-08
d
yr
n .2688936910069468 2.4055e-09 deg/d
Q 2.544050007865521 1.5172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      7581 days (20.76 yr)  
   first obs. used      2000-04-29  
   last obs. used      2021-01-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56429  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:01  

Additional Information
 Earth MOID = 1.2371 au 
 Jupiter MOID = 2.51111 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457860.5 (2017-Apr-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06894982363721605 4.823e-08  
q 2.213502881561889 1.1794e-07 au
tp 2458020.046025616461
(2017-Sep-23.54602562)
0.00014539 TDB
node 208.4369181769439 4.5239e-05 deg
peri 272.057295216698 6.0809e-05 deg
i 6.376737564543534 5.0553e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      7581 days (20.76 yr)  
   first obs. used      2000-04-29  
   last obs. used      2021-01-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56429  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:01  

Additional Information
 Jupiter MOID = 2.51111 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.326118700596766E-15 -5.653767995606026E-15 -4.411252081558116E-13 6.913886731710802E-15 -3.044082315363027E-14 -2.327736655814212E-15
q -5.653767995606026E-15 1.390961458420961E-14 8.218338385352216E-13 -1.690965471626212E-14 -1.693306476798579E-15 6.312992965785774E-15
tp -4.411252081558116E-13 8.218338385352216E-13 2.113837060176601E-8 -7.605292338046426E-11 5.928740403675582E-9 2.993344564788749E-12
node 6.913886731710802E-15 -1.690965471626212E-14 -7.605292338046426E-11 2.04656844538387E-9 -2.053314039607889E-9 5.441271962145842E-11
peri -3.044082315363027E-14 -1.693306476798579E-15 5.928740403675582E-9 -2.053314039607889E-9 3.697716756765862E-9 -5.332273156743001E-11
i -2.327736655814212E-15 6.312992965785774E-15 2.993344564788749E-12 5.441271962145842E-11 -5.332273156743001E-11 2.555602017678522E-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 16.86   n/a MPCxxxxx  

227246 (2005 SF46)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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