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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1088779011761143 3.5706e-08  
a 3.127423886320632 1.7168e-08 au
q 2.786916537489995 1.0924e-07 au
i 1.571406971458181 3.971e-06 deg
node 22.43645754462206 0.00015041 deg
peri 148.605723227521 0.00015159 deg
M 71.70872760312839 1.8582e-05 deg
tp 2458598.109178587757
(2019-Apr-24.60917859)
0.00010411 TDB
period 2020.126427429283
5.53
1.6634e-05
4.554e-08
d
yr
n .1782066682124043 1.4674e-09 deg/d
Q 3.467931235151269 1.9037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      8567 days (23.46 yr)  
   first obs. used      1997-03-03  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5486  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:50:43  

Additional Information
 Earth MOID = 1.79278 au 
 Jupiter MOID = 1.49808 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. 2020-October); 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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