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136689 (1995 SF38)
Classification: Main-belt Asteroid          SPK-ID: 2136689
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .13423603738878 4.9245e-08  
a 2.326524189325893 8.8285e-09 au
q 2.014220801261641 1.1662e-07 au
i .5717746599189328 5.649e-06 deg
node 198.3714361940573 0.00040164 deg
peri 213.5482558867579 0.00040213 deg
M 300.9908652508942 1.7856e-05 deg
tp 2459212.959684017735
(2020-Dec-29.45968402)		 6.4493e-05 TDB
period 1296.163493526631
3.55		 7.3779e-06
2.02e-08		 d
yr
n .2777427398610833 1.5809e-09 deg/d
Q 2.638827577390145 1.0014e-08 au
   Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      9167 days (25.10 yr)  
   first obs. used      1995-09-19  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:50:42  

Additional Information
 Earth MOID = 1.02506 au 
 Jupiter MOID = 2.69175 au 
 T_jup = 3.562 
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Orbital Elements at Epoch 2457144.5 (2015-May-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1355448819154746 4.9519e-08  
q 2.010870491510608 1.1748e-07 au
tp 2456619.183027869450
(2013-Nov-22.68302787)		 6.207e-05 TDB
node 198.4228728682597 0.00040176 deg
peri 213.1796927142111 0.00040223 deg
i .5712906531931502 5.6539e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      9167 days (25.10 yr)  
   first obs. used      1995-09-19  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:50:42  

Additional Information
 Jupiter MOID = 2.69175 au 
 T_jup = 3.562 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.452099465217754E-15 -5.805890828967138E-15 -9.407863935783875E-13 9.205554484099896E-15 -3.199245586062775E-13 -1.524998863133356E-16
q -5.805890828967138E-15 1.380085209532914E-14 2.171067148758505E-12 -2.090290691425892E-14 7.458885623072143E-13 3.949722350147452E-16
tp -9.407863935783875E-13 2.171067148758505E-12 3.852624929613716E-9 -1.036674868426882E-11 1.217019513282947E-9 -2.709201584072559E-13
node 9.205554484099896E-15 -2.090290691425892E-14 -1.036674868426882E-11 1.614117970317291E-7 -1.614062749554094E-7 1.206307403037151E-10
peri -3.199245586062775E-13 7.458885623072143E-13 1.217019513282947E-9 -1.614062749554094E-7 1.617908428248294E-7 -1.20700851400263E-10
i -1.524998863133356E-16 3.949722350147452E-16 -2.709201584072559E-13 1.206307403037151E-10 -1.20700851400263E-10 3.19663442052121E-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 17.3   n/a MPO436673  

136689 (1995 SF38)          Discovered 1995-Sep-24 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1995 SF38 = 1999 YL25 = 2004 FT131 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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