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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415678137978787 5.8076e-08  
a 2.382903251431654 1.5278e-08 au
q 2.045560847634618 1.3885e-07 au
i .7907236758349869 5.3489e-06 deg
node 312.8299827066025 0.0003885 deg
peri 200.1332795172084 0.00038908 deg
M 148.8202485635435 1.8003e-05 deg
tp 2456845.085048636906
(2014-Jul-06.58504864)
6.5298e-05 JED
period 1343.563019284566
3.68
1.2922e-05
3.538e-08
d
yr
n .2679442607699165 2.5769e-09 deg/d
Q 2.72024565522869 1.7441e-08 au
  Orbit Determination Parameters
   # obs. used (total)      876  
   data-arc span      8624 days (23.61 yr)  
   first obs. used      1991-12-28  
   last obs. used      2015-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50367  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:29:23  

Additional Information
 Earth MOID = 1.05608 au 
 Jupiter MOID = 2.27737 au 
 T_jup = 3.523 
[ 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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