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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05956921620847612 4.0237e-08  
a 3.014558101178346 1.91e-08 au
q 2.83498323787624 1.2358e-07 au
i 10.99503557858814 4.5442e-06 deg
node 131.7699567885911 2.5043e-05 deg
peri 5.524074420405361 4.8867e-05 deg
M 274.5940802920651 4.2079e-05 deg
tp 2459054.043960269336
(2020-Jul-23.54396027)
0.00022477 TDB
period 1911.7623960414
5.23
1.8169e-05
4.974e-08
d
yr
n .1883079198259343 1.7897e-09 deg/d
Q 3.194132964480453 2.0238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2548  
   data-arc span      13937 days (38.16 yr)  
   first obs. used      1981-09-03  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38794  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:37:07  

Additional Information
 Earth MOID = 1.84944 au 
 Jupiter MOID = 1.83428 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-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.]
[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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