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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1895546665222778 7.0153e-08  
a 3.145843198217031 2.6519e-08 AU
q 2.549533939847626 2.2673e-07 AU
i 3.609871727205038 7.224e-06 deg
node 222.7902352046434 0.00010009 deg
peri 122.9290704407145 0.00010202 deg
M 40.57215076436017 1.657e-05 deg
tp 2456570.816623244184
(2013-Oct-05.31662324)
9.3488e-05 JED
period 2037.999319097661
5.58
2.577e-05
7.055e-08
d
yr
n .176643827417662 2.2336e-09 deg/d
Q 3.742152456586436 3.1546e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1152  
   data-arc span      26418 days (72.33 yr)  
   first obs. used      1941-09-23  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48593  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 17:56:00  

Additional Information
 Earth MOID = 1.5435 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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