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9936 Al-Biruni (1986 PN4)
Classification: Main-belt Asteroid          SPK-ID: 2009936
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189250348509103 1.1977e-07  
a 3.074499644959512 3.594e-08 AU
q 2.492649515659811 3.6375e-07 AU
i 15.47022304343099 1.2713e-05 deg
node 310.6512765960527 3.0236e-05 deg
peri 13.03252872527311 3.6016e-05 deg
M 61.34325787691449 2.2453e-05 deg
tp 2456464.975348353243
(2013-Jun-21.47534835)
0.00012017 JED
period 1969.065204120657
5.39
3.4527e-05
9.453e-08
d
yr
n .1828278714420574 3.2058e-09 deg/d
Q 3.656349774259213 4.2742e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      11778 days (32.25 yr)  
   first obs. used      1981-10-23  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50942  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:40:51  

Additional Information
 Earth MOID = 1.48115 AU 
 T_jup = 3.147 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.9 mag n/a MPO267747  
rotation period rot_per 10.704 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) 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 Bul. 30, 4-7.]

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

[ show close-approach data ]
Alternate Designations
 1986 PN4 = 1981 UV12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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