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JPL Small-Body Database Browser
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42P/Neujmin 3
Classification: Jupiter-family Comet          SPK-ID: 1000065
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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 TDB
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  
   norm. resid. RMS      .73554  
   source      ORB  
   producer      Ryan S. Park  
   solution date      2015-Dec-14 12:43:34  

Additional Information
 Earth MOID = 1.01462 au 
 Jupiter MOID = .0250046 au 
 T_jup = 2.635 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.2   1. K155/2 from 145 observations, assumed slope, autocmod 2.6
comet total magnitude slope K1 15.   n/a K155/2 autocmod 2.6
comet nuclear magnitude M2 16.4   0.7 K155/2 from 62 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a K155/2 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a K155/2 autocmod 2.6
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1941-Dec-12 23:46 00:07 Jupiter 1.34263974139073 1.34259357936133 1.34268590346859 11.2421893475352 11.185932869591 2430341.490483829 7.28517162363197 2337.65674069692 327.296493538642 10.1997787964242 141347.094122394 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
1946-Sep-25 08:52 00:16 Saturn 1.8778928115714 1.8778218235913 1.87796379975249 4.43709064672699 4.40654798930598 2432088.869561802 16.4209555018001 3672.50714308448 422.791115164527 16.5561485859334 288541.508733177 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
1953-Jul-24 18:51 00:13 Jupiter 1.00020978782636 1.00011209334937 1.00030748334312 5.73216370877767 5.58247356179083 2434583.285120511 12.9050343928925 5140.48021392676 309.433343608888 -15.3755129080645 186978.957372154 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
1980-May-01 13:51 00:05 Jupiter 1.19423495708773 1.19421539048808 1.19425452371799 5.53201534270592 5.40228421191229 2444361.076871424 4.84973758001717 1025.11966326754 204.372240802889 8.93534546696486 281562.215309919 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
1992-Jan-14 01:05 00:01 Jupiter 1.03972006573325 1.03970246847659 1.03973766298997 10.5198218800158 10.4420938691207 2448635.545035263 1.25910173090309 877.816579618784 206.831858127834 6.27793892567372 143834.08720506 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
2060-Mar-25 10:47 00:11 Jupiter 0.874420296973928 0.87436116046137 0.874479434107402 5.95020863007118 5.78512296825783 2473543.949175262 10.9842763848593 3181.85277439837 388.356737756413 -16.8000174149258 195186.948124347 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
2086-Nov-02 07:26 00:19 Jupiter 0.670248348509655 0.670000590874672 0.67049610540616 9.65591344574902 9.52413649178665 2483261.809469116 19.2670286405037 12303.4175077846 409.903287880311 -1.03611220057206 7722.37804270303 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
2093-Jul-15 09:12 01:06 Saturn 1.73928819942201 1.73926407532878 1.73931232354223 3.2105868179021 3.16484351135663 2485708.883118301 65.6961850843862 1304.52632326288 515.823294064918 31.82283630681 55233.1907534309 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
2119-Oct-30 20:09 00:44 Jupiter 0.75604697756242 0.754410284899622 0.757684346203015 9.63948102025374 9.52254867497746 2495311.339325700 43.5265483146963 89161.151243996 638.64146734221 24.4371359473864 61646.6726199661 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
2123-Feb-27 08:06 02:53 Saturn 1.58082708667084 1.58018571673608 1.58146846903452 3.23492243276655 3.18494218898597 2496526.837436597 173.457045619277 32753.6963296203 884.941856171528 -10.5516910026469 95453.252370566 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
2146-Jun-15 16:39 01:37 Jupiter 0.481500050461258 0.476942992102052 0.486058647795359 6.87259821284051 6.61168213560345 2505036.193730692 97.043726622376 231572.960183997 1776.84969372765 6.54463041937264 5253.28754696297 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03
2157-Nov-14 06:57 06:14 Jupiter 1.72902866741616 1.71773858522496 1.74031836296498 12.2503657463017 12.2103109720073 2509205.789250751 373.937133641823 561494.955130047 1089.31502436362 -1.19434405308725 3303.17757195895 T K155/2 CATAB v2.0e-lin.ifort 2017-Dec-06 15:02:28 2017-Dec-06 15:03

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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