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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09400867019271256 5.0127e-08  
a 2.989022069864165 1.4019e-08 au
q 2.708028079899565 1.5023e-07 au
i 8.883613248303805 4.4713e-06 deg
node 239.8008570016503 2.9439e-05 deg
peri 127.4507073271268 3.6183e-05 deg
M 339.4243942714743 1.9558e-05 deg
tp 2459108.380322985489
(2020-Sep-15.88032299)
0.00010243 TDB
period 1887.522379034182
5.17
1.3279e-05
3.636e-08
d
yr
n .1907262154868897 1.3418e-09 deg/d
Q 3.270016059828764 1.5337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2040  
   data-arc span      11350 days (31.07 yr)  
   first obs. used      1989-09-29  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45978  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:21:04  

Additional Information
 Earth MOID = 1.71923 au 
 Jupiter MOID = 2.21892 au 
 T_jup = 3.232 
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Orbital Elements at Epoch 2456985.5 (2014-Nov-24.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09832507326277758 5.0593e-08  
q 2.695338225751879 1.5274e-07 au
tp 2457216.413834463525
(2015-Jul-12.91383446)
9.8531e-05 TDB
node 239.8783620914239 2.9437e-05 deg
peri 126.8280455290578 3.5483e-05 deg
i 8.88404685786807 4.4805e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2040  
   data-arc span      11350 days (31.07 yr)  
   first obs. used      1989-09-29  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45978  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:21:04  

Additional Information
 Jupiter MOID = 2.21892 au 
 T_jup = 3.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.559699678744282E-15 -7.701777057566702E-15 3.049595234663643E-13 -1.424196346008184E-14 2.108697463764259E-14 -3.026260536350755E-15
q -7.701777057566702E-15 2.332988232613209E-14 -1.240589210104307E-12 4.439837755800592E-14 -1.334683275378871E-13 9.180800299356955E-15
tp 3.049595234663643E-13 -1.240589210104307E-12 9.708296138175297E-9 3.586625503832449E-12 1.981432825149097E-9 -2.721907967432643E-12
node -1.424196346008184E-14 4.439837755800592E-14 3.586625503832449E-12 8.66517570384197E-10 -8.546508985909026E-10 -5.337128464252577E-11
peri 2.108697463764259E-14 -1.334683275378871E-13 1.981432825149097E-9 -8.546508985909026E-10 1.259013183010478E-9 5.223768457018191E-11
i -3.026260536350755E-15 9.180800299356955E-15 -2.721907967432643E-12 -5.337128464252577E-11 5.223768457018191E-11 2.007532236020919E-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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