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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1651962359546961 5.5741e-08  
a 3.190253650142746 3.2442e-08 au
q 2.663235755398434 1.7351e-07 au
i 7.673228083388577 6.3488e-06 deg
node 256.3698199461453 4.3384e-05 deg
peri 24.78129702228987 4.8537e-05 deg
M 181.2817110152704 2.7129e-05 deg
tp 2458633.743651146702
(2019-May-30.24365115)
0.00016729 JED
period 2081.307495309532
5.70
3.1748e-05
8.692e-08
d
yr
n .1729681946619142 2.6384e-09 deg/d
Q 3.717271544887058 3.7802e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1391  
   data-arc span      10310 days (28.23 yr)  
   first obs. used      1988-01-11  
   last obs. used      2016-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44241  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:00:55  

Additional Information
 Earth MOID = 1.64897 au 
 Jupiter MOID = 1.42173 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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