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9936 Al-Biruni (1986 PN4)
Classification: Main-belt Asteroid          SPK-ID: 2009936
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1852353487811835 4.1452e-08  
a 3.080930892741765 1.6025e-08 au
q 2.510233584254021 1.2576e-07 au
i 15.40908942783905 4.7349e-06 deg
node 310.356768226507 1.639e-05 deg
peri 14.18393952197157 2.0059e-05 deg
M 101.5479545401878 1.2238e-05 deg
tp 2458443.327027470926
(2018-Nov-20.82702747)
6.6196e-05 TDB
period 1975.246778910607
5.41
1.5411e-05
4.219e-08
d
yr
n .1822557079164296 1.4219e-09 deg/d
Q 3.651628201229509 1.8993e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2054  
   data-arc span      13983 days (38.28 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44581  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:31:28  

Additional Information
 Earth MOID = 1.50032 au 
 Jupiter MOID = 1.68698 au 
 T_jup = 3.147 
[ 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 12.1   n/a MPO365368  
diameter diameter 24.187 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.704 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:
[Clark, M.; Joyce, B. (2003) Minor Planet Bull. 30, 4-7.]
geometric albedo albedo 0.063   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9936 Al-Biruni           Discovered 1986 Aug. 8 by E. W. Elst and V. Ivanova at Smolyan.
The Persian scientist Al-Biruni (973-1048) made important contributions to anthropology, mathematics and astronomy. He developed methods for the summation of series, for solving algebraic equations and for the triangulation of distances on the earth's surface.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070926/MPCPages.arcLast Updated: 2007-09-30

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Alternate Designations
 1986 PN4 = 1981 UV12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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