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JPL Small-Body Database Browser
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13073 (1991 RE15)
Classification: Main-belt Asteroid          SPK-ID: 2013073
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2210838250390672 3.3084e-08  
a 2.261767437277277 5.8945e-09 au
q 1.761727240895208 7.4673e-08 au
i 7.938951712708022 3.797e-06 deg
node 342.9624791525121 2.4363e-05 deg
peri 330.8851032279192 2.536e-05 deg
M 185.0626263045234 7.8825e-06 deg
tp 2459604.240693387102
2.8071e-05 TDB
period 1242.425475060031
n .2897558100880102 1.1327e-09 deg/d
Q 2.761807633659346 7.1977e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2092  
   data-arc span      16574 days (45.38 yr)  
   first obs. used      1974-09-19  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48161  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:32:24  

Additional Information
 Earth MOID = .75319 au 
 Jupiter MOID = 2.55072 au 
 T_jup = 3.574 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO502268  
diameter diameter 3.799 km 0.218 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.369   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

13073 (1991 RE15)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RE15 = 1950 OK = 1974 SY = 1981 TL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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