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73640 Biermann (1977 RM)
Classification: Main-belt Asteroid          SPK-ID: 2073640
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07682719149777351 7.883e-08  
a 2.604687804894417 3.2131e-08 AU
q 2.404576956115878 2.1281e-07 AU
i 23.54468291033463 9.8274e-06 deg
node 96.3818514207599 1.7982e-05 deg
peri 283.0073919294543 6.2364e-05 deg
M 283.4128383508541 6.1979e-05 deg
tp 2457327.152070866791
(2015-Oct-31.65207087)
0.00026625 JED
period 1535.436788358328
4.20
2.8411e-05
7.779e-08
d
yr
n .2344609707996563 4.3384e-09 deg/d
Q 2.804798653672955 3.4599e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      13475 days (36.89 yr)  
   first obs. used      1977-09-05  
   last obs. used      2014-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57482  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:42:18  

Additional Information
 Earth MOID = 1.50581 AU 
 T_jup = 3.291 
[ 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 14.3 mag n/a MPO266271  

73640 Biermann           Discovered 1977 Sept. 5 by H.-E. Schuster at the European Southern Observatory.
Ludwig Biermann (1907-1986) was the first director of the Max-Planck-Institut für Astrophysik. He made pioneering studies on stellar convection and the solar chromosphere and corona. His 1951 study of the structural changes in the tail of comet C/1942 X1 provided the first evidence of the existence of the solar wind.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1977 RM = 1999 XH174 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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