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JPL Small-Body Database Browser
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16674 Birkeland (1994 BK3)
Classification: Main-belt Asteroid          SPK-ID: 2016674
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08035113717196875 5.05e-08  
a 2.614449564983999 1.4567e-08 au
q 2.404375569358776 1.3737e-07 au
i 8.461835171809604 4.2506e-06 deg
node 277.0569608319964 3.6161e-05 deg
peri 46.12575355390556 4.5226e-05 deg
M 237.3521405507692 2.8426e-05 deg
tp 2459526.549123765975
(2021-Nov-08.04912377)
0.00012247 TDB
period 1544.076557113845
4.23
1.2905e-05
3.533e-08
d
yr
n .2331490613865055 1.9486e-09 deg/d
Q 2.824523560609222 1.5738e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1495  
   data-arc span      25342 days (69.38 yr)  
   first obs. used      1950-12-09  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:26:08  

Additional Information
 Earth MOID = 1.39967 au 
 Jupiter MOID = 2.40753 au 
 T_jup = 3.388 
[ 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 14.1   n/a MPO384897  

16674 Birkeland           Discovered 1994 Jan. 16 by E. W. Elst and C. Pollas at Caussols.
Kristian Olaf Birkeland (1867-1917) was a Norwegian scientist who elucidated the nature of the aurora borealis. He constructed an electromagnetic device enabling him to simulate the light of the polar aurora by directing a beam of cathode rays (electrons) on a sphere in a vacuum tank.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100726/MPCPages.arcLast Updated: 2010-07-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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