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17531 (1993 FU25)
Classification: Main-belt Asteroid          SPK-ID: 2017531
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09018198479188656 3.3762e-08  
a 2.809221196280598 1.0872e-08 au
q 2.555880053080576 9.4381e-08 au
i 2.308403829110145 3.2043e-06 deg
node 261.1165350853049 9.0515e-05 deg
peri 146.7711917540836 9.2607e-05 deg
M 133.9807545674815 1.9263e-05 deg
tp 2458756.445065087990
(2019-Sep-29.94506509)
9.1574e-05 TDB
period 1719.797573257204
4.71
9.9841e-06
2.733e-08
d
yr
n .2093269612645048 1.2152e-09 deg/d
Q 3.06256233948062 1.1853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      10309 days (28.22 yr)  
   first obs. used      1993-03-21  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48109  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:25:24  

Additional Information
 Earth MOID = 1.56563 au 
 Jupiter MOID = 2.25368 au 
 T_jup = 3.315 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457332.5 (2015-Nov-06.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08737750314549413 3.3607e-08  
q 2.564412486503921 9.3545e-08 au
tp 2457031.276335744560
(2015-Jan-08.77633574)
9.4989e-05 TDB
node 261.4316266663222 9.074e-05 deg
peri 145.6608155785915 9.2987e-05 deg
i 2.304294605602494 3.2002e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      10309 days (28.22 yr)  
   first obs. used      1993-03-21  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48109  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:25:24  

Additional Information
 Jupiter MOID = 2.25368 au 
 T_jup = 3.315 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.12944369440273E-15 -3.126365210582071E-15 -6.526991675951474E-13 -3.630239430027492E-15 -1.703299721496308E-13 2.136253059792306E-16
q -3.126365210582071E-15 8.750658946726854E-15 1.82877702394542E-12 9.727548085041938E-15 4.790954036509698E-13 -5.027514003010864E-16
tp -6.526991675951474E-13 1.82877702394542E-12 9.022821017091742E-9 6.349325675970922E-12 1.945927656432605E-9 -7.849992393927939E-13
node -3.630239430027492E-15 9.727548085041938E-15 6.349325675970922E-12 8.233819945512488E-9 -8.22547559301241E-9 -1.59938967204188E-11
peri -1.703299721496308E-13 4.790954036509698E-13 1.945927656432605E-9 -8.22547559301241E-9 8.646592916486084E-9 1.580473243696543E-11
i 2.136253059792306E-16 -5.027514003010864E-16 -7.849992393927939E-13 -1.59938967204188E-11 1.580473243696543E-11 1.024137962854628E-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 14.04   n/a MPCxxxxx  

17531 (1993 FU25)          Discovered 1993-Mar-21 by UESAC at La Silla
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 FU25 = 1998 HE78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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