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JPL Small-Body Database Browser
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58541 (1997 EA18)
Classification: Main-belt Asteroid          SPK-ID: 2058541
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1086997257528342 3.7773e-08  
a 3.125408094506418 1.8295e-08 au
q 2.785677091767882 1.1655e-07 au
i 1.571928780295874 4.1639e-06 deg
node 22.44963538889373 0.00015425 deg
peri 148.2300083028171 0.00015543 deg
M .7146176696448338 1.8738e-05 deg
tp 2458596.493826301572
(2019-Apr-22.99382630)		 0.00010505 TDB
period 2018.173623038203
5.53		 1.772e-05
4.851e-08		 d
yr
n .1783791027146852 1.5662e-09 deg/d
Q 3.465139097244954 2.0283e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      8087 days (22.14 yr)  
   first obs. used      1997-03-03  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54896  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:35:14  

Additional Information
 Earth MOID = 1.79211 au 
 Jupiter MOID = 1.50264 au 
 T_jup = 3.205 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO436191  
diameter diameter 7.384 km 0.464 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.69 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.036   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58541 (1997 EA18)          Discovered 1997-Mar-03 by Endate, K., Watanabe, K. at Kitami
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 EA18 = 2000 TE18 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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