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119P/Parker-Hartley
Classification: Jupiter-family Comet          SPK-ID: 1000120
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 2457164.5 (2015-May-22.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2950453641774186 1.1111e-07  
a 4.292462036261698 1.7518e-07 AU
q 3.025991011555121 4.6829e-07 AU
i 5.185143628222569 8.0445e-06 deg
node 243.8948571156254 8.0322e-05 deg
peri 181.661715328449 0.00013329 deg
M 45.80860790049942 6.0315e-05 deg
tp 2456751.164492995507
(2014-Apr-03.66449300)
0.00054305 JED
period 3248.314876645601
8.89
0.00019885
5.444e-07
d
yr
n .1108266943541375 6.7842e-09 deg/d
Q 5.558933060968275 2.2686e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.673695739502095E-8 7.563E-9
A2 [EST] 1.019061223024169E-8 1.981E-10
  Orbit Determination Parameters
   # obs. used (total)      1683  
   data-arc span      10438 days (28.58 yr)  
   first obs. used      1986-09-30  
   last obs. used      2015-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .7419  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2015-May-12 21:54:40  

Additional Information
 Earth MOID = 2.03801 AU 
 T_jup = 2.941 
[ 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
comet total magnitude M1 2.0 mag n/a ICQ 2005 Handbook  
comet total magnitude slope K1 23.0   n/a ICQ 2005 Handbook  

119P/Parker-Hartley          Discovered 1989-Mar-02 by Parker, Quentin A. and Hartley, Malcolm at U. K. Schmidt Telescope, Siding Spring Obs.
discovered on plate/photo taken on discovery date
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1996.5   119P/1995 M2       
 1987.6   119P/1989 E1   1987 XXXVI   1989i 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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