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4529 Webern (1984 ED)
Classification: Main-belt Asteroid          SPK-ID: 2004529
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05940906861990033 3.8839e-08  
a 3.014751088662327 1.7879e-08 au
q 2.835647534364067 1.2099e-07 au
i 10.99623112741089 4.3651e-06 deg
node 131.7625835697052 2.3259e-05 deg
peri 5.310585853637581 4.6162e-05 deg
M 350.1043698462668 3.9488e-05 deg
tp 2459053.055306400120
(2020-Jul-22.55530640)
0.00020981 TDB
period 1911.945981217327
5.23
1.7008e-05
4.657e-08
d
yr
n .188289838487377 1.675e-09 deg/d
Q 3.193854642960586 1.8941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2723  
   data-arc span      14113 days (38.64 yr)  
   first obs. used      1981-09-03  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37948  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:09:05  

Additional Information
 Earth MOID = 1.84968 au 
 Jupiter MOID = 1.83324 au 
 T_jup = 3.218 
[ 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 MPO337289  
diameter diameter 10.427 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.469 h n/a LCDB (Rev. 2019-August); 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.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2016) Astron. Astrophys., submitted.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2018) Icarus 299, 84-96.]
geometric albedo albedo 0.214   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4529 Webern (1984 ED)          Discovered 1984-Mar-01 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1984 ED = 1942 CK = 1986 PW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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