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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07692283934462708 1.2436e-07  
a 2.604454232953915 3.2307e-08 AU
q 2.404112218411967 3.1829e-07 AU
i 23.5456282481424 1.1034e-05 deg
node 96.38185513945307 2.6409e-05 deg
peri 283.0637228154712 7.7066e-05 deg
M 236.4697019641022 7.1077e-05 deg
tp 2457327.298476789308
(2015-Oct-31.79847679)
0.00030458 JED
period 1535.230260587888
4.20
2.8566e-05
7.821e-08
d
yr
n .2344925118022001 4.3632e-09 deg/d
Q 2.804796247495863 3.4792e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      353  
   data-arc span      13078 days (35.81 yr)  
   first obs. used      1977-09-05  
   last obs. used      2013-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60827  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-06 10:51:21  

Additional Information
 Earth MOID = 1.50472 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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