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164215 Doloreshill (2004 MF6)
Classification: Amor [NEO]          SPK-ID: 2164215
[ 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.
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 2455200.5 (2010-Jan-04.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3969202750726624 1.9005e-07  
a 2.114730595281432 9.506e-08 AU
q 1.275351145697751 4.3856e-07 AU
i 4.879132707478044 7.6329e-06 deg
node 236.3012077863161 0.00019086 deg
peri 76.19656110486974 0.00023795 deg
M 275.9869526553928 6.1487e-05 deg
tp 2455462.635136066998
(2010-Sep-23.13513607)		 0.00020623 JED
period 1123.261826190342
3.08		 7.5739e-05
2.074e-07		 d
yr
n .320495178956608 2.161e-08 deg/d
Q 2.954110044865113 1.3279e-07 AU
   Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      2087 days (5.71 yr)  
   first obs. used      2001-10-20  
   last obs. used      2007-07-08  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   quality code      0  
   fit RMS      .53712  
   data source      ORB  
   producer      Otto Matic  
   solution date      2009-Jul-29 00:51:23  

Additional Information
 Earth MOID = .278272 AU 
 T_jup = 3.627 
[ 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 19.935 mag .49821 35 autocmod 2.4a

164215 Doloreshill           Discovered 2004 June 25 by the Catalina Sky Survey.
Dolores H. Hill (b. 1956) is a meteoriticist with the University of Arizona's Lunar and Planetary Laboratory, where she has, since 1981, classified meteorites using microprobe analysis, neutron activation methods and inductively coupled plasma mass spectrometry.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

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