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3905 Doppler (1984 QO)
Classification: Main-belt Asteroid          SPK-ID: 2003905
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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.

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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2577630655718605 1.0554e-07  
a 2.558910669002288 1.7259e-08 au
q 1.899318010435718 2.7735e-07 au
i 14.1931365412821 7.2643e-06 deg
node 343.320151642073 3.8386e-05 deg
peri 90.88069455904413 4.2735e-05 deg
M 223.8797083938639 1.6727e-05 deg
tp 2458165.829286593711
7.2596e-05 JED
period 1495.137431549271
n .2407805412422628 2.436e-09 deg/d
Q 3.218503327568858 2.1708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      772  
   data-arc span      12669 days (34.69 yr)  
   first obs. used      1980-09-08  
   last obs. used      2015-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46102  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:45:32  

Additional Information
 Earth MOID = .973345 au 
 Jupiter MOID = 2.27186 au 
 T_jup = 3.347 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6 mag n/a MPO337283  
rotation period rot_per 50.8 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Franco, L.; Hayes-Gehrke, M.; Bartek, A.; Basile, T.; et al. (2013) CBET 3755.]
[Hayes-Gehrke, M.N.; Maroulis, M.; Bartek, A.; Garcia, E.; et al. (2014) Minor Planet Bul. 41, 72.]

3905 Doppler           Discovered 1984 Aug. 28 by A. Mrkos at Klet.
Named in memory of the Austrian physicist Christian Doppler (1803-1853), professor of mathematics and geometry at the Technical University in Prague and later the first director of the Physical Institute in Vienna. The well-known effect relating a shift in observed wavelength to the relative motion of source and observer was formulated by Doppler in Prague in his book Ueber das farbige Licht der Doppelsterne (1842). Name suggested by J. Ticha and M. Šolc.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

Alternate Designations
 1984 QO = 1980 RP2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2016-May-06 11:09 UT
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