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5191 Paddack (1990 VO3)
Classification: Main-belt Asteroid          SPK-ID: 2005191
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1136994809470565 6.0034e-08  
a 3.009153400524414 2.8327e-08 AU
q 2.667014220794718 1.8806e-07 AU
i 9.03637107155304 6.5889e-06 deg
node 232.9232139240241 3.842e-05 deg
peri 143.081826188191 4.7888e-05 deg
M 266.6176354748733 3.0947e-05 deg
tp 2457495.069447837189
(2016-Apr-16.56944784)
0.00016704 JED
period 1906.623398612708
5.22
2.6922e-05
7.371e-08
d
yr
n .1888154736073953 2.6662e-09 deg/d
Q 3.351292580254111 3.1548e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1131  
   data-arc span      14839 days (40.63 yr)  
   first obs. used      1974-11-12  
   last obs. used      2015-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51183  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:50:51  

Additional Information
 Earth MOID = 1.6758 AU 
 T_jup = 3.221 
[ 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 12.0 mag n/a MPO337296  

5191 Paddack           Discovered 1990 Nov. 13 by S. Ueda and H. Kaneda at Kushiro.
Stephen J. Paddack (b. 1934) is an aeronautical engineer, who was involved with many spacecraft missions, including Cobe, ICE, and ISEE 1, 2 and 3. His research on the effects of radiation pressure contributed significantly towards understanding the Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-06-02Last Updated: 2015-06-04

[ show close-approach data ]
Alternate Designations
 1990 VO3 = 1958 TD1 = 1974 VJ = 1976 EH = 1979 WO4 = 1988 PC3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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