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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 2457180.5 (2015-Jun-07.0) TDB
Reference: JPL K155/1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5841637167115186 8.7407e-07  
a 4.876751006935248 2.9946e-06 AU
q 2.027930013247313 3.5349e-06 AU
i 3.98445442154188 2.7144e-05 deg
node 150.279757336733 0.00021671 deg
peri 147.1336765381322 0.00043918 deg
M 5.469718524972695 0.00010671 deg
tp 2457120.733643993426
(2015-Apr-08.23364399)
0.0011138 JED
period 3933.637181535598
10.77
0.0036232
9.92e-06
d
yr
n .09151835397779737 8.4296e-08 deg/d
Q 7.725572000623184 4.7439e-06 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.154509872154682E-8 6.577E-10
A2 [EST] -1.45827208832384E-9 2.106E-10
DT [EST] 103.1323768739342 14.31
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      15740 days (43.09 yr)  
   first obs. used      1972-04-17  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .71335  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2015-Jun-08 08:16:15  

Additional Information
 Earth MOID = 1.01314 AU 
 T_jup = 2.635 
[ 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
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 
 1993.7       1993 XVI   1993j 
 1972.2       1972 IV   1972g 
 1950.6   42P/1951 J1   1951 V   1951g 
 1929.1   42P/1929 P2   1929 III   1929b 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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