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207935 (2009 AF)
Classification: Main-belt Asteroid          SPK-ID: 2207935
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1236200358143631 5.5133e-08  
a 2.425855728728866 1.5822e-08 au
q 2.125971356662925 1.2857e-07 au
i 7.717734093068814 4.1239e-06 deg
node 102.4443732121277 3.8292e-05 deg
peri 275.1646778262427 4.1769e-05 deg
M 88.1122727864681 1.6235e-05 deg
tp 2458662.723226467398
(2019-Jun-28.22322647)
6.1737e-05 TDB
period 1380.053364035021
3.78
1.3501e-05
3.696e-08
d
yr
n .2608594778881786 2.552e-09 deg/d
Q 2.725740100794806 1.7777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      9516 days (26.05 yr)  
   first obs. used      1994-01-11  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53915  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 01:45:52  

Additional Information
 Earth MOID = 1.14451 au 
 Jupiter MOID = 2.75607 au 
 T_jup = 3.488 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457237.5 (2015-Aug-03.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1240488456811815 5.5256e-08  
q 2.124759587478089 1.2884e-07 au
tp 2457279.632893193298
(2015-Sep-14.13289319)
6.109e-05 TDB
node 102.5448465828492 3.8333e-05 deg
peri 274.3304872194225 4.1772e-05 deg
i 7.714060850873206 4.1196e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      9516 days (26.05 yr)  
   first obs. used      1994-01-11  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53915  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 01:45:52  

Additional Information
 Jupiter MOID = 2.75607 au 
 T_jup = 3.488 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.053196352053755E-15 -7.085624724421515E-15 7.192642844570982E-13 3.225551982652541E-16 1.27002853442529E-13 -8.22261984666579E-15
q -7.085624724421515E-15 1.660048205906139E-14 -1.811036752277706E-12 -8.400126894781323E-16 -3.35527946773167E-13 1.938714026752618E-14
tp 7.192642844570982E-13 -1.811036752277706E-12 3.731975955841789E-9 -3.283824655021886E-12 1.042264460998919E-9 -3.912641698842995E-12
node 3.225551982652541E-16 -8.400126894781323E-16 -3.283824655021886E-12 1.469401724979798E-9 -1.456803892617372E-9 -5.42229574838209E-11
peri 1.27002853442529E-13 -3.35527946773167E-13 1.042264460998919E-9 -1.456803892617372E-9 1.744911954275821E-9 5.285613067667194E-11
i -8.22261984666579E-15 1.938714026752618E-14 -3.912641698842995E-12 -5.42229574838209E-11 5.285613067667194E-11 1.697139873183618E-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 16.3   n/a MPO503072  

207935 (2009 AF)          Discovered 2009-Jan-01 by Lowe, A. at Mayhill
Reference: 20090209/Numbers.arcLast Updated: 2009-02-11

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Alternate Designations
 2009 AF = 2004 XK126 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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