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JPL Small-Body Database Browser
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4321 Zero (1981 EH26)
Classification: Main-belt Asteroid          SPK-ID: 2004321
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2855586707465605 4.5946e-08  
a 3.06240781608986 1.4132e-08 au
q 2.187910710843362 1.3922e-07 au
i 2.409224119664553 3.7426e-06 deg
node 135.1562408204308 0.00010594 deg
peri 244.5551265722892 0.00010606 deg
M 180.2789342202293 6.397e-06 deg
tp 2459577.713478063910
(2021-Dec-29.21347806)
3.83e-05 TDB
period 1957.460304258921
5.36
1.3549e-05
3.71e-08
d
yr
n .1839117754861921 1.273e-09 deg/d
Q 3.936904921336357 1.8167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1778  
   data-arc span      14859 days (40.68 yr)  
   first obs. used      1978-09-03  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47713  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:22:09  

Additional Information
 Earth MOID = 1.19094 au 
 Jupiter MOID = 1.52238 au 
 T_jup = 3.168 
[ 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 13.2   n/a MPO395038  
diameter diameter 11.147 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.098   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4321 Zero           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Samuel Joel "Zero" Mostel (1915-1977) was an American actor, singer and artist. A Tony Award winner for his theatrical performances, Mostel is probably best known for his comedic roles in movies such as A Funny Thing Happened on the Way to the Forum and The Producers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1981 EH26 = 1978 RC4 = 1978 SP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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