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29491 Pfaff (1997 WB1)
Classification: Main-belt Asteroid          SPK-ID: 2029491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0810751921315237 3.272e-08  
a 2.633134504297029 1.1544e-08 au
q 2.419652618453003 8.4862e-08 au
i 2.359216540219273 4.4992e-06 deg
node 358.0095360906549 8.4201e-05 deg
peri 61.72267913650527 9.0884e-05 deg
M 81.60105267444186 3.1762e-05 deg
tp 2458646.746086149433
(2019-Jun-12.24608615)
0.00013775 TDB
period 1560.658898535163
4.27
1.0263e-05
2.81e-08
d
yr
n .2306718017229111 1.5169e-09 deg/d
Q 2.846616390141055 1.248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1127  
   data-arc span      9079 days (24.86 yr)  
   first obs. used      1995-03-28  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52759  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:41:53  

Additional Information
 Earth MOID = 1.43306 au 
 Jupiter MOID = 2.39048 au 
 T_jup = 3.393 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO459066  

29491 Pfaff           Discovered 1997 Nov. 23 by P. G. Comba at Prescott.
Johann Friedrich Pfaff (1765-1825) was a German mathematician who proposed the first general method for integrating partial differenitial equations of the first order.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020128/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1997 WB1 = 1995 FT15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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