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5547 Acadiau (1980 LE1)
Classification: Main-belt Asteroid          SPK-ID: 2005547
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1238190063223261 4.5831e-08  
a 2.615091567114434 1.0577e-08 au
q 2.29129352783243 1.1705e-07 au
i 12.72136370070631 4.5384e-06 deg
node 240.5416319639788 1.9192e-05 deg
peri 337.2257906333218 2.5065e-05 deg
M 193.0547223316026 1.7656e-05 deg
tp 2459716.809012234762
(2022-May-17.30901223)
7.7359e-05 TDB
period 1544.64533532193
4.23
9.371e-06
2.566e-08
d
yr
n .2330632098953447 1.4139e-09 deg/d
Q 2.938889606396438 1.1886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2458  
   data-arc span      14661 days (40.14 yr)  
   first obs. used      1980-06-10  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:30:04  

Additional Information
 Earth MOID = 1.28745 au 
 Jupiter MOID = 2.07484 au 
 T_jup = 3.362 
[ 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 12.4   n/a MPO358684  
diameter diameter 9.177 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.642 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Ditteon, R.; Lin, W; Sheerin, M. (2019) Minor Planet Bull. 46, 275-276.]
geometric albedo albedo 0.231   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5547 Acadiau (1980 LE1)          Discovered 1980-Jun-11 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 LE1 = 1984 JW = 1990 VQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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