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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 ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1650836885185008 5.5831e-08  
a 3.190640162128746 3.2793e-08 au
q 2.663917515429265 1.7405e-07 au
i 7.672554763232359 6.3707e-06 deg
node 256.3687801430194 4.7209e-05 deg
peri 24.82436277724491 5.2192e-05 deg
M 146.6372427024183 2.7063e-05 deg
tp 2456552.575950560479
(2013-Sep-17.07595056)
0.00014912 JED
period 2081.685744853366
5.70
3.2093e-05
8.787e-08
d
yr
n .1729367657390373 2.6661e-09 deg/d
Q 3.717362808828227 3.8206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1315  
   data-arc span      10205 days (27.94 yr)  
   first obs. used      1988-01-11  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44104  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:05:59  

Additional Information
 Earth MOID = 1.64829 au 
 Jupiter MOID = 1.42053 au 
 T_jup = 3.162 
[ 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 12.4 mag n/a MPO358709  

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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