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JPL Small-Body Database Browser
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58540 (1997 ET17)
Classification: Main-belt Asteroid          SPK-ID: 2058540
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1521931716490256 3.5364e-08  
a 2.190402584326258 5.483e-09 au
q 1.857038267829423 7.8252e-08 au
i 1.273101855271164 3.8993e-06 deg
node 251.2964677915149 0.00014912 deg
peri 164.2308508838354 0.00014966 deg
M 29.70576145981027 1.1352e-05 deg
tp 2458502.793708389015
(2019-Jan-19.29370839)
3.7317e-05 TDB
period 1184.088986493167
3.24
4.446e-06
1.217e-08
d
yr
n .3040312038254714 1.1416e-09 deg/d
Q 2.523766900823094 6.3174e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1559  
   data-arc span      9647 days (26.41 yr)  
   first obs. used      1992-10-01  
   last obs. used      2019-03-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48671  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:35:13  

Additional Information
 Earth MOID = .868301 au 
 Jupiter MOID = 2.79955 au 
 T_jup = 3.658 
[ 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 15.0   n/a MPO452964  
diameter diameter 3.668 km 0.357 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.509 h n/a LCDB (Rev. 2019-January); 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.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.120   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58540 (1997 ET17)          Discovered 1997-Mar-03 by Endate, K., Watanabe, K. at Kitami
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 ET17 = 2000 AZ49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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