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84P/Giclas
Classification: Jupiter-family Comet          SPK-ID: 1000033
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2454160.5 (2007-Mar-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.492424263364939 2.3973e-07  
a 3.64803827001798 7.0639e-08 AU
q 1.85165571217727 8.8552e-07 AU
i 7.28106171190454 1.3664e-05 deg
node 112.472385393478 9.081e-05 deg
peri 276.3197237919842 0.00010867 deg
M 29.07755527387262 1.1603e-05 deg
tp 2453954.937971549816
(2006-Aug-07.43797155)		 7.7537e-05 JED
period 2544.998351651673
6.97		 7.392e-05
2.024e-07		 d
yr
n .1414539226582855 4.1086e-09 deg/d
Q 5.444420827858681 1.0542e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.849282594161015E-11 6.86E-13
   Orbit Determination Parameters
   # obs. used (total)      623  
   data-arc span      27575 days (75.50 yr)  
   first obs. used      1931-09-12  
   last obs. used      2007-03-12  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      1.0152  
   data source      ORB  
   producer      Nick Mastrodemos  
   solution date      2007-Mar-16 15:05:19  

Additional Information
 Earth MOID = .874238 AU 
 T_jup = 2.872 
[ 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 12.2 mag 1. 35 from 270 observations, assumed slope, autocmod 2.4
comet total magnitude slope K1 15.   n/a 35 autocmod 2.4
comet nuclear magnitude M2 15.2 mag 0.9 35 from 212 observations, autocmod 2.4
comet nuclear magnitude slope K2 5.   n/a 35 autocmod 2.4
comet nuclear phase coefficient PC 0.03   n/a 35 autocmod 2.4
diameter diameter 1.80 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264  

84P/Giclas          Discovered 1978-Sep-08 by Giclas, Henry L. at Lowell Observatory
First known observation: 1978/09/03
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
1923-Mar-02 05:16 < 00:01 Jupiter 1.13961507155124 1.13961042574286 1.1396197173524 5.94402775408846 5.8176420965141 2423480.72 0.323759028021763 36.1090150548381 8.80368964912653 -22.5152348257695 848959.298478997 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
1934-Feb-06 04:51 < 00:01 Jupiter 0.959139812104716 0.959133046257941 0.959146577918854 6.20457454071756 6.06057195067558 2427474.70216 0.881691496599252 55.2470895763958 20.9962212660183 -21.5415524249373 359019.162528338 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
1981-Aug-18 09:45 00:01 Jupiter 0.540700186282385 0.54069654203458 0.540703830529694 4.20232587895269 3.81136258317841 2444834.90667 1.09396384035739 11.6089298821296 7.26152219642403 -18.3572636038844 520920.324185079 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
2018-Apr-03 23:26 < 00:01 Jupiter 1.1028721095869 1.10286283163952 1.10288138750775 6.44089634597173 6.32053125561346 2458212.47701 0.494219315107622 66.9397345630519 10.8025522870928 -19.0747887966859 587361.256118086 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
2029-Mar-13 17:44 < 00:01 Jupiter 1.76189857833629 1.76188878719804 1.76190836942889 8.38556161515232 8.32803429302963 2462209.23906 0.829702492740488 112.3609404562 16.3755316651332 -2.46314661934804 339967.719497469 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
2033-Jun-11 01:10 00:01 Vesta 0.0387263698917576 0.038701865837046 0.0387508740351249 10.5737490359855 10.5737487454101 2463759.54863 1.41452224038832 1224.78195362508 77.9078035797362 -4.36990805748993 7365.08729106646 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
2065-Sep-27 02:55 00:01 Jupiter 0.994477978291971 0.99444005414081 0.994515901718804 6.18908206233086 6.04989960289606 2475555.62201 1.23375591697384 330.288968258677 10.4332069267434 -20.8598437184715 520824.421175085 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
2076-Aug-20 13:52 00:01 Jupiter 1.29744581333074 1.29742930163766 1.29746232483506 6.89506284879019 6.79972166739058 2479536.07842 1.89827579164944 161.034641061289 11.7399756434499 -4.50979120497603 199522.841945707 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
2124-Feb-17 07:07 00:05 Jupiter 0.672891019475994 0.672852812707454 0.672929231488068 4.50332480112984 4.21454291111987 2496881.79675 5.72801978115439 360.785945879848 10.2527406979516 -46.575140668829 531983.955903884 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37
2160-May-07 02:19 00:37 Jupiter 0.425242747925246 0.425173394877377 0.425312105947965 3.8944039357723 3.34404978918328 2510110.59718 37.4424885755839 196.155743370791 8.56553850850873 26.4396386872098 208769.509466209 T 35 CATAB v2.0b-linF95 2007-Mar-16 15:37:02 2007-Mar-16 15:37

Alternate Designations
 Perihelion 
Year (est.)		  New-Style 
Desig		 Roman
 Numeral 		 Year/
 Letter 
 1992.7       1992 XXV   1992l 
 1985.7   84P/1985 M1   1985 XV   1985g 
 1978.7   84P/1978 R2   1978 XXII   1978k 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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