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17432 (1989 SR)
Classification: Main-belt Asteroid          SPK-ID: 2017432
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09400865220128442 5.2218e-08  
a 2.989022080400201 1.9785e-08 au
q 2.708028143221899 1.5351e-07 au
i 8.883612083474311 5.2442e-06 deg
node 239.8008161655968 3.1044e-05 deg
peri 127.4507327901983 3.9956e-05 deg
M 339.4244020302889 2.7324e-05 deg
tp 2459108.380282875513
(2020-Sep-15.88028288)
0.00014371 TDB
period 1887.522389014204
5.17
1.874e-05
5.131e-08
d
yr
n .1907262144784503 1.8936e-09 deg/d
Q 3.270016017578503 2.1644e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1653  
   data-arc span      10981 days (30.06 yr)  
   first obs. used      1989-09-29  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50452  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:08:22  

Additional Information
 Earth MOID = 1.71923 au 
 Jupiter MOID = 2.21892 au 
 T_jup = 3.232 
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Orbital Elements at Epoch 2456224.5 (2012-Oct-24.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09900377542521339 5.278e-08  
q 2.691843364020654 1.5638e-07 au
tp 2455330.120472472685
(2010-May-13.62047247)
0.00012485 TDB
node 239.8847101212838 3.1036e-05 deg
peri 126.9557919782182 3.9047e-05 deg
i 8.886111573519406 5.2517e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1653  
   data-arc span      10981 days (30.06 yr)  
   first obs. used      1989-09-29  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50452  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:08:22  

Additional Information
 Jupiter MOID = 2.21892 au 
 T_jup = 3.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.785772183338499E-15 -8.204167560416001E-15 1.410988971147282E-12 3.146300062315455E-15 1.980919586077898E-13 1.856444796673041E-15
q -8.204167560416001E-15 2.445626284023251E-14 -3.836492207147178E-12 -6.960744823135554E-15 -5.005330720542973E-13 -5.39859268903912E-15
tp 1.410988971147282E-12 -3.836492207147178E-12 1.5587731610271E-8 7.456288884541304E-12 2.979987270400827E-9 -2.829774756428644E-12
node 3.146300062315455E-15 -6.960744823135554E-15 7.456288884541304E-12 9.632534755206319E-10 -9.494275350304694E-10 -2.977763603035656E-11
peri 1.980919586077898E-13 -5.005330720542973E-13 2.979987270400827E-9 -9.494275350304694E-10 1.524657240653442E-9 2.88371910312518E-11
i 1.856444796673041E-15 -5.39859268903912E-15 -2.829774756428644E-12 -2.977763603035656E-11 2.88371910312518E-11 2.758063844321562E-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 12.9   n/a MPO358799  
diameter diameter 8.341 km 1.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.089 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.211   0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

17432 (1989 SR)          Discovered 1989-Sep-29 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 SR = 1994 RH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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