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68448 Sidneywolff (2001 SW4)
Classification: Main-belt Asteroid          SPK-ID: 2068448
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238483126569043 3.5165e-08  
a 2.287670098700892 7.6183e-09 au
q 1.742099381004192 8.202e-08 au
i 9.208213854257071 4.5615e-06 deg
node 89.45849224188501 2.2614e-05 deg
peri 249.4985667215977 2.4492e-05 deg
M 166.010650877672 1.0383e-05 deg
tp 2458417.696740555101
(2018-Oct-26.19674056)
3.514e-05 TDB
period 1263.82959340823
3.46
6.3131e-06
1.728e-08
d
yr
n .2848485285339543 1.4229e-09 deg/d
Q 2.833240816397592 9.4351e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1067  
   data-arc span      8350 days (22.86 yr)  
   first obs. used      1997-06-09  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53356  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:19:37  

Additional Information
 Earth MOID = .758171 au 
 Jupiter MOID = 2.59804 au 
 T_jup = 3.546 
[ 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 15.4   n/a MPO453084  

68448 Sidneywolff           Discovered 2001 Sept. 18 by C. W. Juels and P. R. Holvorcem at Fountain Hills.
Sidney C. Wolff (b. 1941), director of Kitt Peak National Observatory (1984-1987) and the National Optical Astronomy Observatory (1987-2001), was president of the American Astronomical Society (1992-1994) and the Astronomical Society of the Pacific (1985-1986) and a founding editor of the Astronomy Education Review.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

Alternate Designations
 2001 SW4 = 2000 FR22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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