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40P/Vaisala 1
Classification: Jupiter-family Comet          SPK-ID: 1000101
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 2456717.5 (2014-Mar-01.0) TDB
Reference: JPL K148/4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6320098833195152 8.9237e-08  
a 4.942608120060443 4.1178e-08 AU
q 1.818830938806954 4.4063e-07 AU
i 11.48978062817381 5.8629e-06 deg
node 133.8478928043112 5.3638e-05 deg
peri 47.29736753380379 5.4672e-05 deg
M 336.6947505161061 6.9547e-06 deg
tp 2456977.326803232385
(2014-Nov-15.82680323)
7.9979e-05 JED
period 4013.587120288143
10.99
5.0157e-05
1.373e-07
d
yr
n .08969532470847548 1.1209e-09 deg/d
Q 8.066385301313932 6.7203e-08 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.088657960670008E-10 3.046E-13
  Orbit Determination Parameters
   # obs. used (total)      1013  
   data-arc span      27375 days (74.95 yr)  
   first obs. used      1939-01-18  
   last obs. used      2013-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .84879  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Feb-19 14:59:15  

Additional Information
 Earth MOID = .845383 AU 
 T_jup = 2.533 
[ 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 5.5 mag n/a ICQ 2004 Handbook  
comet total magnitude slope K1 30.0   n/a ICQ 2004 Handbook  
diameter diameter 4.2 km n/a Scotti,J (1994) BAAS 26:1375  

40P/Vaisala 1          Discovered 1939-Feb-08 by Vaisala, Y. at Turku, Finland
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 
 1992.9       1993 VIII   1992u 
 1981.9       1982 V   1981l 
 1970.9       1971 VII   1970q 
 1959.9       1960 IV   1959i 
 1948.9   40P/1949 Y1   1949 V   1949h 
 1938.0   40P/1939 CB   1939 IV   1939b 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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