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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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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342360260225143 5.5284e-08  
a 2.326524201763473 1.3454e-08 au
q 2.014220838473542 1.2886e-07 au
i .5717749883325323 6.305e-06 deg
node 198.3715244717625 0.00053064 deg
peri 213.5481555317357 0.00053121 deg
M 300.9908657883286 2.4294e-05 deg
tp 2459212.959683786439
(2020-Dec-29.45968379)
8.8305e-05 TDB
period 1296.163503920551
3.55
1.1244e-05
3.078e-08
d
yr
n .2777427376338676 2.4093e-09 deg/d
Q 2.638827565053404 1.526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      8163 days (22.35 yr)  
   first obs. used      1995-09-19  
   last obs. used      2018-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58604  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 07:18:27  

Additional Information
 Earth MOID = 1.02506 au 
 Jupiter MOID = 2.69175 au 
 T_jup = 3.562 
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Orbital Elements at Epoch 2456268.5 (2012-Dec-07.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134832451165756 5.5667e-08  
q 2.012935129195156 1.2989e-07 au
tp 2456619.409381855048
(2013-Nov-22.90938185)
7.9141e-05 TDB
node 198.5033748828909 0.00053125 deg
peri 213.2310605603222 0.00053181 deg
i .5708277314060586 6.3085e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      8163 days (22.35 yr)  
   first obs. used      1995-09-19  
   last obs. used      2018-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58604  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 07:18:27  

Additional Information
 Jupiter MOID = 2.69175 au 
 T_jup = 3.562 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.098776504666497E-15 -7.201774203542299E-15 -1.026203103440136E-12 4.31781395726241E-14 -4.201226999604701E-13 -2.698003110325187E-16
q -7.201774203542299E-15 1.687049796699516E-14 2.606320114493404E-12 -9.98395507086708E-14 1.028358126115602E-12 6.454095290605739E-16
tp -1.026203103440136E-12 2.606320114493404E-12 6.263224562207165E-9 -2.795988945879277E-11 1.932993442966676E-9 -3.402776969182692E-13
node 4.31781395726241E-14 -9.98395507086708E-14 -2.795988945879277E-11 2.822315185876767E-7 -2.822260503470899E-7 -3.38163459489122E-12
peri -4.201226999604701E-13 1.028358126115602E-12 1.932993442966676E-9 -2.822260503470899E-7 2.828200919691347E-7 3.284586939572509E-12
i -2.698003110325187E-16 6.454095290605739E-16 -3.402776969182692E-13 -3.38163459489122E-12 3.284586939572509E-12 3.979752928590071E-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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