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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 ]

[ show orbit diagram ]
:
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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