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8027 Robertrushworth (1991 PB12)
Classification: Main-belt Asteroid          SPK-ID: 2008027
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1649877353418839 6.636e-08  
a 3.1925181890784 4.5739e-08 AU
q 2.665791843024582 2.2401e-07 AU
i 7.670747762960643 7.3258e-06 deg
node 256.3807161028815 6.1572e-05 deg
peri 25.01339877391696 6.631e-05 deg
M 42.71091504401936 3.036e-05 deg
tp 2456553.307737550690
(2013-Sep-17.80773755)
0.00017277 JED
period 2083.523951431063
5.70
4.4776e-05
1.226e-07
d
yr
n .1727841908189896 3.7132e-09 deg/d
Q 3.719244535132217 5.3285e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      9670 days (26.48 yr)  
   first obs. used      1988-01-11  
   last obs. used      2014-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46166  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:18:37  

Additional Information
 Earth MOID = 1.65129 AU 
 T_jup = 3.161 
[ 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 12.2 mag n/a MPO266000  

8027 Robertrushworth           Discovered 1991 Aug. 7 by H. E. Holt at Palomar.
Air Force test pilot Robert Rushworth (1924-1993) was the sixth pilot to fly the X-15 and made a total of 34 flights. One of these flights reached 86800 meters, for which Rushworth received Air Force astronaut wings.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 1991 PB12 = 1974 SG2 = 1988 AN 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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