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26591 Robertreeves (2000 ET141)
Classification: Main-belt Asteroid          SPK-ID: 2026591
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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 2-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 has stopped working because of a recent Java upgrade, here is a possible workaround.
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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287668409921491 5.7235e-08  
a 2.527730131431028 1.6268e-08 au
q 2.202242307525985 1.4621e-07 au
i 2.692306700823083 5.3725e-06 deg
node 98.0783745858476 0.00012754 deg
peri 194.9479052254752 0.0001291 deg
M 285.3776673113473 2.4152e-05 deg
tp 2457904.771170481790
9.9538e-05 JED
period 1467.8932891373
n .2452494351354223 2.3676e-09 deg/d
Q 2.853217955336071 1.8363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1262  
   data-arc span      12639 days (34.60 yr)  
   first obs. used      1981-09-03  
   last obs. used      2016-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51623  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:47:29  

Additional Information
 Earth MOID = 1.18592 au 
 Jupiter MOID = 2.30259 au 
 T_jup = 3.439 
[ 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 13.9 mag n/a MPO337483  

26591 Robertreeves           Discovered 2000 Mar. 2 by R. Hill at the Catalina Sky Survey.
Robert Reeves (b. 1946) is the author of several books on digital astronomical imaging and of numerous popular articles on various topics in astronomy and space science.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100130/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2000 ET141 = 1981 RD7 = 1998 XR58 = 2000 FG50 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-05 08:34 UT
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