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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 ]

[ show orbit diagram ]
:
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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