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8028 Joeengle (1991 QE)
Classification: Main-belt Asteroid          SPK-ID: 2008028
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2122601918874491 7.698e-08  
a 3.117086062201084 4.0234e-08 au
q 2.455452776508589 2.4011e-07 au
i 23.33775734010329 9.5881e-06 deg
node 21.95304747854876 1.5891e-05 deg
peri 309.9365121907484 2.5923e-05 deg
M 178.3782207877949 2.6162e-05 deg
tp 2456604.496318378157
(2013-Nov-07.99631838)
0.00013422 JED
period 2010.118296955215
5.50
3.8919e-05
1.066e-07
d
yr
n .1790939371803652 3.4675e-09 deg/d
Q 3.77871934789358 4.8775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      12590 days (34.47 yr)  
   first obs. used      1981-10-22  
   last obs. used      2016-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48524  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:00:55  

Additional Information
 Earth MOID = 1.50721 au 
 Jupiter MOID = 1.87378 au 
 T_jup = 3.058 
[ 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 MPO267740  

8028 Joeengle           Discovered 1991 Aug. 30 by R. H. McNaught at Siding Spring.
Air Force test pilot Joe Engle (b. 1932) was the eighth pilot to fly the X-15 and made a total of 16 flights. He received Air Force astronaut wings for a flight that took him to 85500 meters. Engle also flew the Space Shuttle, becoming the only person who reached space before being selected as an astronaut.
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

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Alternate Designations
 1991 QE = 1981 UY20 = 1981 WO7 = 1986 TS1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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