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4384 Henrybuhl (1990 AA)
Classification: Main-belt Asteroid          SPK-ID: 2004384
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1805478594754697 9.8047e-08  
a 2.620068654205999 3.4907e-08 AU
q 2.147020867010331 2.6375e-07 AU
i 13.28323406384159 1.1881e-05 deg
node 316.4904313931046 3.0736e-05 deg
peri 44.16638222462881 4.0372e-05 deg
M 353.3323846811385 3.4432e-05 deg
tp 2456829.190325064608
(2014-Jun-20.69032506)
0.00014858 JED
period 1549.05712602245
4.24
3.0957e-05
8.476e-08
d
yr
n .2323994344381478 4.6444e-09 deg/d
Q 3.093116441401667 4.121e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      764  
   data-arc span      28814 days (78.89 yr)  
   first obs. used      1933-08-26  
   last obs. used      2012-07-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56137  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:01:22  

Additional Information
 Earth MOID = 1.16062 AU 
 T_jup = 3.344 
[ 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 12.2 mag n/a MPO234866  

4384 Henrybuhl           Discovered 1990 Jan. 3 by T. Hioki and S. Hayakawa at Okutama.
Henry Buhl, Jr. (1848-1927) was a philanthropist who established the Buhl Foundation for "the well-being of the citizens of Pittsburgh and the County of Allegheny". The foundation created the Buhl Planetarium and supports education, human services and youth and economic development in the community.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-06-13Last Updated: 2014-06-16

[ show close-approach data ]
Alternate Designations
 1990 AA = 1933 QT = 1950 QD1 = 1982 BY3 = 1984 QM1 = 1986 AO1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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