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85P/Boethin
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000004
Ephemeris | Orbit Diagram | Orbital Elements | 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 2454252.5 (2007-Jun-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.7811606261503803994017 0.00022404  
a 5.1848871265672986652361 0.019708 AU
q 1.1346574522589409905748 0.0054744 AU
i 4.2952945910302675613934 0.016338 deg
node 359.3961137217372 1.1096 deg
peri 37.61838460810365 1.2758 deg
M 313.1875107575854 0.4319 deg
tp 2454813.246563731727
(2008-Dec-12.74656373)
8.3706 JED
period 4312.284311523383
11.81
24.586
0.06731
d
yr
n .08348243622017221 0.00047597 deg/d
Q 9.235116800875655 0.035102 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 0 3.862E-9
A2 [EST] 0 5.669E-9
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      4042 days (11.07 yr)  
   first obs. used      1975-02-05  
   last obs. used      1986-03-01  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      8  
   fit RMS      1.6569  
   data source      ORB  
   producer      Steven R. Chesley  
   solution date      2007-Sep-25 13:47:46  

Additional Information
 Earth MOID = .149899 AU 
 T_jup = 2.247 
[ show covariance matrix ]

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

no physical parameters available

85P/Boethin          Discovered 1975-Jan-04 by Boethin, Leo at Bangued, The Philippines
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1985.3   85P/1985 T2   1986 I   1985n 
 1973.5   85P/1975 A1   1975 I   1975a 
Ephemeris | Orbit Diagram | Orbital Elements | Discovery Circumstances | Close-Approach Data ]
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