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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130217770759519 9.0703e-08  
a 3.115101125593803 4.2229e-08 au
q 2.451516748048513 2.8811e-07 au
i 23.33344157043219 1.3111e-05 deg
node 21.97415813286378 1.5954e-05 deg
peri 309.8806892027927 2.9596e-05 deg
M 142.5698982071647 2.743e-05 deg
tp 2456605.198154512695
(2013-Nov-08.69815451)
0.00014625 JED
period 2008.198560676547
5.50
4.0835e-05
1.118e-07
d
yr
n .1792651419283553 3.6452e-09 deg/d
Q 3.778685503139094 5.1225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      12472 days (34.15 yr)  
   first obs. used      1981-10-22  
   last obs. used      2015-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49276  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:05:59  

Additional Information
 Earth MOID = 1.50252 au 
 Jupiter MOID = 1.875 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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