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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09393228909132512 2.1118e-08  
a 2.988743872910445 1.2991e-08 au
q 2.708004319420295 6.377e-08 au
i 8.88371552227936 9.2687e-07 deg
node 239.7993690087117 6.2237e-06 deg
peri 127.5465492589225 1.7336e-05 deg
M 17.49423126317778 1.4287e-05 deg
tp 2459108.788491348261
(2020-Sep-16.28849135)
7.4969e-05 TDB
period 1887.258869391941
5.17
1.2305e-05
3.369e-08
d
yr
n .1907528457481771 1.2437e-09 deg/d
Q 3.269483426400596 1.4212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2318  
   data-arc span      11478 days (31.43 yr)  
   first obs. used      1989-09-29  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:02:59  

Additional Information
 Earth MOID = 1.71775 au 
 Jupiter MOID = 2.21855 au 
 T_jup = 3.232 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.97   n/a E2021B10  
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. 2020-October); 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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