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3204 Lindgren (1978 RH)
Classification: Main-belt Asteroid          SPK-ID: 2003204
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2792134686285282 5.1329e-08  
a 3.157446256141186 2.143e-08 au
q 2.275844734955845 1.6357e-07 au
i 2.063163669424011 4.7368e-06 deg
node 108.7034995961044 0.00019031 deg
peri 298.3768384589487 0.00019049 deg
M 221.6111602912003 1.256e-05 deg
tp 2458388.272733268833
7.7281e-05 JED
period 2049.285076553372
n .1756710201615642 1.7885e-09 deg/d
Q 4.039047777326527 2.7414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1298  
   data-arc span      13492 days (36.94 yr)  
   first obs. used      1978-09-01  
   last obs. used      2015-08-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5094  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:08:21  

Additional Information
 Earth MOID = 1.28505 au 
 Jupiter MOID = 1.36741 au 
 T_jup = 3.143 
[ 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 MPO337276  
rotation period rot_per 5.6143 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

3204 Lindgren (1978 RH)          Discovered 1978-Sep-01 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 RH = 1980 CQ = 1980 DM 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-Apr-30 05:15 UT
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