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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2135905149112045 1.0643e-07  
a 3.113766716084547 4.7116e-08 AU
q 2.448695679882678 3.45e-07 AU
i 23.33405741538951 1.4625e-05 deg
node 21.9936212439363 1.6339e-05 deg
peri 309.7894772237983 3.1537e-05 deg
M 70.87094724857961 2.7271e-05 deg
tp 2456605.412516179263
(2013-Nov-08.91251618)
0.00014967 JED
period 2006.908326998777
5.49
4.5551e-05
1.247e-07
d
yr
n .1793803908015871 4.0714e-09 deg/d
Q 3.778837752286416 5.7179e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      11730 days (32.11 yr)  
   first obs. used      1981-10-22  
   last obs. used      2013-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49906  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:08:58  

Additional Information
 Earth MOID = 1.50202 AU 
 T_jup = 3.059 
[ 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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