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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 2457380.5 (2015-Dec-24.0) TDB
Reference: JPL K155/2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5841747519155726 6.5766e-07  
a 4.876460018192112 5.3786e-07 au
q 2.027755196838527 3.2826e-06 au
i 3.984591946246174 2.1101e-05 deg
node 150.279966816504 0.00016411 deg
peri 147.120393793131 0.00028053 deg
M 23.77772214832961 6.7309e-05 deg
tp 2457120.709553900616
(2015-Apr-08.20955390)
0.00071991 JED
period 3933.285115048261
10.77
0.00065075
1.782e-06
d
yr
n .09152654574230702 1.5143e-08 deg/d
Q 7.725164839545697 8.5207e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.267969358459133E-8 4.148E-10
A2 [EST] -1.047094835047333E-9 1.706E-10
DT [EST] 77.07626509628521 7.751
  Orbit Determination Parameters
   # obs. used (total)      297  
   data-arc span      15880 days (43.48 yr)  
   first obs. used      1972-04-17  
   last obs. used      2015-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .73554  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2015-Dec-14 12:43:34  

Additional Information
 Earth MOID = 1.01462 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 
 1950.7   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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