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152P/Helin-Lawrence
Classification: Jupiter-family Comet          SPK-ID: 1000145
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | 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 2456717.5 (2014-Mar-01.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .307052444517784 1.7158e-07  
a 4.49524252546863 3.5742e-07 AU
q 3.11496731932319 6.9107e-07 AU
i 9.867922589389332 1.3987e-05 deg
node 91.90871679178919 7.0563e-05 deg
peri 163.6628087831154 0.00012273 deg
M 62.08993873213372 5.2996e-05 deg
tp 2456117.091476722549
(2012-Jul-08.59147672)
0.00051601 JED
period 3481.193133598933
9.53
0.00041519
1.137e-06
d
yr
n .1034128203130816 1.2334e-08 deg/d
Q 5.875517731614069 4.6717e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.057355418191195E-7 1.039E-8
A2 [EST] 3.855828748796353E-8 5.054E-10
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      7536 days (20.63 yr)  
   first obs. used      1993-05-17  
   last obs. used      2014-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .80605  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Feb-19 13:37:00  

Additional Information
 Earth MOID = 2.10053 AU 
 T_jup = 2.900 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 8.5 mag n/a ICQ 2005 Handbook  
comet total magnitude slope K1 11.0   n/a ICQ 2005 Handbook  

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2003.0   152P/2001 Y1       
 1993.5   152P/1993 K2   1993 XI   1993l 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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