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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.

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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3958366555435985 1.3353e-07  
a 2.115295141025927 5.0768e-08 au
q 1.277983786914599 3.0732e-07 au
i 4.878187835910487 5.5737e-06 deg
node 236.0183895623403 0.00010588 deg
peri 76.61699113770166 0.00011921 deg
M 324.8612447063999 5.6471e-05 deg
tp 2457710.182857764301
0.00018006 JED
period 1123.711652994715
n .3203668833019507 1.1533e-08 deg/d
Q 2.952606495137254 7.0863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      3134 days (8.58 yr)  
   first obs. used      2001-10-20  
   last obs. used      2010-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61087  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 11:22:11  

Additional Information
 Earth MOID = .279476 au 
 Jupiter MOID = 2.3682 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 20.0 mag n/a MPO177942  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-Apr-29 10:07 UT
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