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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1418959310334646 6.3134e-08  
a 2.383046230329219 1.6805e-08 AU
q 2.044901666780866 1.5194e-07 AU
i .7909185231386399 5.7363e-06 deg
node 312.8301337982779 0.00041908 deg
peri 200.060795962747 0.00041979 deg
M 348.0986978761831 1.9112e-05 deg
tp 2456844.921079436838
(2014-Jul-06.42107944)
7.1484e-05 JED
period 1343.683945747342
3.68
1.4213e-05
3.891e-08
d
yr
n .2679201468019118 2.834e-09 deg/d
Q 2.721190793877571 1.9189e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      858  
   data-arc span      8094 days (22.16 yr)  
   first obs. used      1991-12-28  
   last obs. used      2014-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51947  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:55:42  

Additional Information
 Earth MOID = 1.05558 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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