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5860 Deankoontz (1981 QE1)
Classification: Main-belt Asteroid          SPK-ID: 2005860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1997425981748507 3.226e-08  
a 2.427256723024182 6.5452e-09 au
q 1.942430158729958 7.9068e-08 au
i 1.535303540082011 3.0822e-06 deg
node 263.8490847280536 0.00014779 deg
peri 139.046936435669 0.00014809 deg
M 46.84580895309857 8.7072e-06 deg
tp 2458820.761862106539
3.336e-05 TDB
period 1381.249061285903
n .260633661292664 1.0542e-09 deg/d
Q 2.912083287318405 7.8525e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2185  
   data-arc span      24975 days (68.38 yr)  
   first obs. used      1951-12-01  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49678  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:26:50  

Additional Information
 Earth MOID = .951527 au 
 Jupiter MOID = 2.49303 au 
 T_jup = 3.482 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO448972  
diameter diameter 3.852 km 0.650 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.366   0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

5860 Deankoontz           Discovered 1981 Aug. 28 by Z. Vavrova at Klet.
Dean Ray Koontz (b. 1945) is a contemporary American author. He is known for his best-selling suspense novels with elements of horror, fantasy, science fiction and mystery.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-09-28Last Updated: 2015-10-05

[ show close-approach data ]
Alternate Designations
 1981 QE1 = 1928 RD = 1981 RJ4 = 1981 SW3 = 1985 UV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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