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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134278271503558 4.9183e-08  
a 2.32644053092152 8.6009e-09 au
q 2.014050117673559 1.1651e-07 au
i .5717923400834197 5.5821e-06 deg
node 198.3711978259351 0.00039295 deg
peri 213.6008715842704 0.00039344 deg
M 356.5015057646419 1.7617e-05 deg
tp 2459213.095488680304
(2020-Dec-29.59548868)		 6.3436e-05 TDB
period 1296.093581942189
3.55		 7.1875e-06
1.968e-08		 d
yr
n .2777577213680373 1.5403e-09 deg/d
Q 2.638830944169481 9.7558e-09 au
   Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      9245 days (25.31 yr)  
   first obs. used      1995-09-19  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58577  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:06:05  

Additional Information
 Earth MOID = 1.02406 au 
 Jupiter MOID = 2.69191 au 
 T_jup = 3.562 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457258.5 (2015-Aug-24.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1355751942356288 4.9493e-08  
q 2.010704125238543 1.174e-07 au
tp 2456619.085460243702
(2013-Nov-22.58546024)		 6.1434e-05 TDB
node 198.424617914731 0.00039306 deg
peri 213.147184559452 0.00039354 deg
i .5713361242521172 5.587e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      9245 days (25.31 yr)  
   first obs. used      1995-09-19  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58577  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:06:05  

Additional Information
 Jupiter MOID = 2.69191 au 
 T_jup = 3.562 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.449524805544689E-15 -5.799266585052379E-15 -9.387143854077378E-13 1.324305688020564E-14 -3.234191067997664E-13 -1.989170509324551E-16
q -5.799266585052379E-15 1.378160849273753E-14 2.156192518863912E-12 -3.028470457778615E-14 7.515754746442944E-13 5.074834993202937E-16
tp -9.387143854077378E-13 2.156192518863912E-12 3.774167312419987E-9 -1.399883362512273E-11 1.199954160561056E-9 -2.281273360040105E-13
node 1.324305688020564E-14 -3.028470457778615E-14 -1.399883362512273E-11 1.54499935801416E-7 -1.544958430439218E-7 1.842729709587407E-10
peri -3.234191067997664E-13 7.515754746442944E-13 1.199954160561056E-9 -1.544958430439218E-7 1.548764370142232E-7 -1.843271265855315E-10
i -1.989170509324551E-16 5.074834993202937E-16 -2.281273360040105E-13 1.842729709587407E-10 -1.843271265855315E-10 3.121428053795416E-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 17.51   n/a E2021B55  

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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