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9962 Pfau (1991 YL1)
Classification: Main-belt Asteroid          SPK-ID: 2009962
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1416525444703702 5.9894e-08  
a 2.382396568101572 1.5665e-08 AU
q 2.044924032292507 1.4389e-07 AU
i .7908566401049347 5.4224e-06 deg
node 312.827755714267 0.00039488 deg
peri 200.0424164228419 0.00039547 deg
M 41.7163627298087 1.7649e-05 deg
tp 2456844.859203968912
(2014-Jul-06.35920397)
6.5366e-05 JED
period 1343.134513766096
3.68
1.3247e-05
3.627e-08
d
yr
n .2680297440876374 2.6435e-09 deg/d
Q 2.719869103910638 1.7884e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      8101 days (22.18 yr)  
   first obs. used      1991-12-28  
   last obs. used      2014-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5053  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:16:41  

Additional Information
 Earth MOID = 1.056 AU 
 T_jup = 3.524 
[ 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 14.6 mag n/a PDS3 (MPC 33662)  

9962 Pfau           Discovered 1991 Dec. 28 by F. Borngen at Tautenburg.
Werner Pfau (b. 1936), director of the Jena University Observatory from 1990 to 2000 and a former chairman of the Astronomische Gesellschaft, is a well-known German expert on the physics of the interstellar medium and a promoter of the education of teachers of astronomy. The citation was provided by H. Zimmermann.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1991 YL1 = 1996 FJ3 = 1996 HN26 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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