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3866 Langley (1988 BH4)
Classification: Main-belt Asteroid          SPK-ID: 2003866
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1894837551878863 6.482e-08  
a 3.146372062215448 2.5241e-08 AU
q 2.550185668648612 2.0769e-07 AU
i 3.609457267861797 7.0451e-06 deg
node 222.7868786325334 9.7556e-05 deg
peri 122.9981504915344 9.941e-05 deg
M 75.84582020225761 1.6551e-05 deg
tp 2456571.020247631472
(2013-Oct-05.52024763)
9.2887e-05 JED
period 2038.513268633199
5.58
2.453e-05
6.716e-08
d
yr
n .1765992920131327 2.1251e-09 deg/d
Q 3.742558455782285 3.0024e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      26760 days (73.26 yr)  
   first obs. used      1941-09-23  
   last obs. used      2014-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48449  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:04:26  

Additional Information
 Earth MOID = 1.54584 AU 
 T_jup = 3.178 
[ 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 11.6 mag n/a MPO267723  

3866 Langley           Discovered 1988 Jan. 20 by H. Debehogne at the European Southern Observatory.
Samuel Pierpont Langley (1834-1906), third secretary of the Smithsonian Institution, was founder of its Astrophysical Observatory. While Allegheny Observatory director he invented a bolometer. He developed a working wing and in 1896 conducted the first successful flight of an unmanned, heavier-than-air flying machine.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

[ show close-approach data ]
Alternate Designations
 1988 BH4 = 1941 SD2 = 1964 XK = 1975 XC7 = 1975 YN = 1977 CO1 = 1980 TU9 = 1983 AL2 = 1985 OJ = 1986 XZ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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