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178P/Hug-Bell
Classification: Jupiter-family Comet          SPK-ID: 1000283
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2456134.5 (2012-Jul-26.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4730229634679645 2.1602e-07  
a 3.670265316249794 3.6176e-08 au
q 1.93414553964363 7.9129e-07 au
i 10.97467282437022 2.3677e-05 deg
node 103.573686092311 3.2733e-05 deg
peri 296.926775855707 6.7205e-05 deg
M 309.2613677481978 2.4131e-05 deg
tp 2456496.476912601373
(2013-Jul-22.97691260)
0.00016983 TDB
period 2568.293285672192
7.03
3.7971e-05
1.04e-07
d
yr
n .1401709072746255 2.0724e-09 deg/d
Q 5.406385092855957 5.3288e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.668229293726916E-10 1.579E-12
  Orbit Determination Parameters
   # obs. used (total)      989  
   data-arc span      7775 days (21.29 yr)  
   first obs. used      1999-10-10  
   last obs. used      2021-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .80755  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-30 21:13:01  

Additional Information
 Earth MOID = .971304 au 
 Jupiter MOID = .654727 au 
 T_jup = 2.871 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.6   0.6 47 2 parameter fit from 560 observations, autocmod 2.8
comet total magnitude slope K1 10.   n/a 47 autocmod 2.8
comet nuclear magnitude M2 15.9   0.7 47 from 364 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 47 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 47 autocmod 2.8

[ 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
1922-Jul-09 14:42 00:05 Jupiter 1.00537305293692 1.00535428229438 1.00539182388623 5.12510564331445 4.95799519684649 2423245.112169162 4.49548757568524 1334.93601666915 313.758555823822 -50.142459074934 263059.246808521 T 47 CATAB v2.0f-lin.ifort 2021-Jan-30 21:13:03 2021-Jan-30 21:13
1925-Oct-27 03:28 00:35 Jupiter 1.95783755377375 1.95781998912146 1.95785512040256 2.88824468399406 2.73435440819302 2424450.644268836 35.1950033224203 3405.84407918588 100.451484831132 88.293560310509 291814.198989325 T 47 CATAB v2.0f-lin.ifort 2021-Jan-30 21:13:03 2021-Jan-30 21:13
1983-Apr-01 06:34 00:02 Jupiter 1.0006312974147 1.00061819622599 1.00064439871129 6.10044955773354 5.96007621984563 2445425.773683923 2.2433190493604 852.393468429276 179.887192265325 -42.9304006968555 385934.788915034 T 47 CATAB v2.0f-lin.ifort 2021-Jan-30 21:13:03 2021-Jan-30 21:13
2018-Jul-16 08:43 00:02 Jupiter 1.99827929741727 1.99826563694058 1.99829295790441 9.02173756460128 8.97463073359031 2458315.863378923 1.60987079328619 720.392647873043 149.430439754263 -20.3576901478166 509316.205836163 T 47 CATAB v2.0f-lin.ifort 2021-Jan-30 21:13:03 2021-Jan-30 21:13
2065-Jan-11 18:28 00:05 Jupiter 1.17863813726238 1.17862177768281 1.17865449703557 5.54275283728143 5.41154495737815 2475297.269525838 4.87533004374356 1164.85358325087 311.00868283751 -50.8419146380878 295214.69090727 T 47 CATAB v2.0f-lin.ifort 2021-Jan-30 21:13:03 2021-Jan-30 21:13
2125-Jul-25 18:54 00:05 Jupiter 1.26140919414126 1.26138198905052 1.26143639932656 7.02549544864558 6.92925739980327 2497406.287752004 4.98419133227575 1465.32428245807 175.607858410285 -23.9409436618468 271981.254114218 T 47 CATAB v2.0f-lin.ifort 2021-Jan-30 21:13:03 2021-Jan-30 21:13
2161-Jan-09 11:19 00:05 Jupiter 1.65412987883451 1.65408844919124 1.65417130861251 8.17641569211536 8.11354687953695 2510357.971814623 5.3064902362899 2197.70357259968 145.159560142457 -21.3944490779792 302753.370949119 T 47 CATAB v2.0f-lin.ifort 2021-Jan-30 21:13:03 2021-Jan-30 21:13

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2006.5   178P/2006 O1       
 1999.5   178P/1999 X1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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