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65P/Gunn
Classification: Jupiter-family Comet          SPK-ID: 1000035
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2456981.5 (2014-Nov-20.0) TDB
Reference: JPL K104/10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2607057268894698 7.1314e-08  
a 3.88176451763782 4.8385e-07 AU
q 2.8697662774533 5.2528e-07 AU
i 9.236164787635726 7.1293e-06 deg
node 64.26687291990494 4.8266e-05 deg
peri 211.0847397825086 5.9948e-05 deg
M 224.6099735864263 4.999e-05 deg
tp 2458032.073345499253
(2017-Oct-05.57334550)
0.00057431 JED
period 2793.458383887379
7.65
0.00052229
1.43e-06
d
yr
n .1288725123225296 2.4095e-08 deg/d
Q 4.89376275782234 6.0999e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 4.900014938315902E-9 1.786E-10
A2 [EST] 5.438958205563565E-9 2.835E-11
A3 [EST] -1.204179930732386E-8 2.07E-10
DT [EST] -317.3811149669993 3.799
  Orbit Determination Parameters
   # obs. used (total)      3818  
   data-arc span      9231 days (25.27 yr)  
   first obs. used      1989-01-05  
   last obs. used      2014-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .81583  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Nov-10 13:45:40  

Additional Information
 Earth MOID = 1.85719 AU 
 T_jup = 2.987 
[ 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 7.9 mag 1. K104/10 2 parameter fit from 1109 observations, autocmod 2.6
comet total magnitude slope K1 12.   n/a K104/10 autocmod 2.6
comet nuclear magnitude M2 11.9 mag 0.9 K104/10 from 2093 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a K104/10 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a K104/10 autocmod 2.6
diameter diameter 10.8 km n/a Scotti,J (1994) BAAS 26:1375  

65P/Gunn          Discovered 1970-Oct-27 by Gunn, James E. at Palomar Mountain Observatory, California (675)
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
1910-Nov-12 11:14 12:24 Jupiter 1.80834408186221 1.80784611682724 1.80884224660661 4.01344787454192 3.89499297997238 2418987.968299950 743.999498937455 2569.06586956448 69.310588789888 -50.805813238581 202782.80219662 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
1938-Jun-13 17:24 05:46 Jupiter 1.37563777678015 1.37548477396437 1.37579080375224 2.6946892734159 2.45558317477488 2429063.225107286 346.242976917349 555.860260694158 161.842574068131 59.2744947744948 49800.2363091484 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
1941-Aug-03 11:43 00:08 Jupiter 1.38376162609325 1.38330253635157 1.38422057208042 5.16266217597726 5.04270254035512 2430209.987923428 7.63812544083224 3379.26433862524 98.4905852841315 4.60083652921198 14832.6820032886 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
1965-Jul-20 22:29 00:04 Jupiter 0.352484381986067 0.352465013460952 0.35250375198225 3.33000253847812 2.50657185431165 2438962.436817152 4.23373819939988 80.5553672222607 4.23631695561581 51.7106257519581 530299.400139567 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2012-Dec-18 14:56 < 00:01 Jupiter 0.564406061715887 0.564404270727025 0.564407852702293 3.78791291871928 3.36850401435129 2456280.122071150 0.287504303983611 8.07966772412775 4.81611190356397 -36.7677585599936 841050.017993866 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2034-Oct-18 12:11 01:21 Jupiter 1.48804057005241 1.48801708965497 1.48806405168083 1.87235532902312 1.53859494152493 2464254.007880763 81.1513130329034 70.3203105633972 7.66002218130108 -64.6639047481262 818676.146361282 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2037-Apr-04 11:35 < 00:01 Jupiter 1.28020349973595 1.28016716891048 1.28023982959306 4.7953992547443 4.65538308941463 2465152.982487877 0.779537922019723 267.388243982866 8.8867202093314 -9.49392669419015 283524.635956343 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2072-May-26 00:42 00:06 Jupiter 0.910408005435794 0.910319691074551 0.91049631331628 4.44094859431821 4.22625966471903 2477988.529327803 5.78502643152749 522.177888840986 20.5668028141263 -14.4008560811817 120704.332820055 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2096-Feb-07 04:21 00:47 Jupiter 0.730759774012388 0.730335357393038 0.731184017767644 3.78223220041243 3.46223678177617 2486645.681300074 46.8352421054741 2122.39711267993 19.3707194817678 -18.7651023247946 111643.810463562 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2099-Jul-20 10:06 03:39 Jupiter 1.06352788201217 1.06319359121422 1.06386200747536 1.92297303991541 1.45085179978255 2487904.920553558 219.323835764083 1280.9338217255 6.79079074979275 -5.53677438231011 62664.6642139161 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2132-Feb-18 15:51 06:38 Jupiter 1.89624670159597 1.88727866472022 1.90517497606643 5.97057785740268 5.8952890113225 2499805.160358134 398.08792899022 86672.511729149 31.9526906926784 -6.9229436500716 104698.914871032 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2136-Aug-25 10:51 3_03:06 Jupiter 1.23945017071152 1.23677202023467 1.24214447999444 2.90375944417347 2.65801571110226 2501454.952155177 4506.03825951736 8697.42559245671 22.9970446751608 67.2308033843695 359633.25242781 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52
2178-Aug-03 15:58 2_22:19 Jupiter 0.373785665712491 0.35089846228547 0.396408075685758 3.03536572718768 2.16363481813277 2516773.165420506 4218.56356948051 72017.4339592774 13.1178029164732 -32.3608085954433 110947.004847564 T K104/10 CATAB v2.0c-linF95 2014-Nov-10 13:52:09 2014-Nov-10 13:52

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1987.2       1989 XI   
 1979.5       1976 III   
 1971.9   65P/1970 U2   1969 II   1970p 
 1956.6   65P/1954 P1   1953 VIII   
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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