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42P/Neujmin 3
Classification: Jupiter-family Comet          SPK-ID: 1000065
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 2453320.5 (2004-Nov-11.0) TDB
Reference: JPL K044/16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.585156236902446 9.675e-07  
a 4.8565622624888 1.186e-05 AU
q 2.01471456468843 2.5531e-06 AU
i 3.98545815966324 3.144e-05 deg
node 150.3839203783331 0.00024946 deg
peri 147.1604235988238 0.00036711 deg
M 10.87169036507149 7.2973e-05 deg
tp 2453202.444440917962
(2004-Jul-15.94444092)
0.00064271 JED
period 3909.235808083484
10.70
0.01432
3.921e-05
d
yr
n .0920896097532912 3.3734e-07 deg/d
Q 7.698409960289181 1.88e-05 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.102120173844708E-8 1.2E-9
A2 [EST] -1.328553900002154E-9 6.359E-10
DT [EST] 103.6193277770297 17.32
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      11892 days (32.56 yr)  
   first obs. used      1972-04-17  
   last obs. used      2004-11-07  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      2  
   fit RMS      .68423  
   data source      ORB  
   producer      M.S.W. Keesey  
   solution date      2005-Jan-28 14:06:09  

Additional Information
 Earth MOID = .998952 AU 
 T_jup = 2.634 
[ 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 14.0 mag n/a ICQ 2004 Handbook  
comet total magnitude slope K1 10.0   n/a ICQ 2004 Handbook  
diameter diameter 2.2 km n/a Scotti,J (1994) BAAS 26:1375  

42P/Neujmin 3          Discovered 1929-Aug-02 by Neujmin, G. N. at Simeis, Crimea (094)
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 
 1993.8       1993 XVI   1993j 
 1972.4       1972 IV   1972g 
 1951.0   42P/1951 J1   1951 V   1951g 
 1929.6   42P/1929 P2   1929 III   1929b 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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