Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
178P/Hug-Bell
Classification: Jupiter-family Comet          SPK-ID: 1000283
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2454952.5 (2009-May-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4716004271612915 2.6495e-07  
a 3.676132121372456 4.8807e-08 au
q 1.942466642631861 9.8217e-07 au
i 10.96355690847269 2.7637e-05 deg
node 103.6321984508248 3.7973e-05 deg
peri 296.7587117498244 8.568e-05 deg
M 143.9228534579123 3.0758e-05 deg
tp 2453923.270194435096
(2006-Jul-06.77019444)
0.00022339 TDB
period 2574.45375144482
7.05
5.127e-05
1.404e-07
d
yr
n .1398354892947535 2.7848e-09 deg/d
Q 5.409797600113051 7.1824e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -2.126421574315704E-10 3.409E-12
  Orbit Determination Parameters
   # obs. used (total)      657  
   data-arc span      7294 days (19.97 yr)  
   first obs. used      1999-10-10  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .71952  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:08:47  

Additional Information
 Earth MOID = .97887 au 
 Jupiter MOID = .650455 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 13.5   0.6 38 2 parameter fit from 250 observations, autocmod 2.8
comet total magnitude slope K1 11.   n/a 38 autocmod 2.8
comet nuclear magnitude M2 15.9   0.7 38 from 361 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 38 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 38 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 14:16 00:07 Jupiter 1.00516229749424 1.00510965202827 1.00521494712355 5.12420890036337 4.957032587555 2423245.094715046 7.0405436687065 4231.22763395322 379.24360021218 -54.5638494947224 228157.716013659 T 38 CATAB v2.0f-lin.ifort 2019-Nov-07 02:08:49 2019-Nov-07 02:08
1925-Oct-26 20:12 01:47 Jupiter 1.957623159983 1.95756971514665 1.95767662369265 2.88593306834887 2.73189523748404 2424450.341320003 107.136211098711 10462.3296807617 112.347232238562 88.4454343282167 264528.67284802 T 38 CATAB v2.0f-lin.ifort 2019-Nov-07 02:08:49 2019-Nov-07 02:08
1983-Apr-01 06:29 00:03 Jupiter 1.00065170343417 1.00063815325405 1.00066525372293 6.10057769564644 5.96021027187326 2445425.770364236 3.15964203955726 875.549866541598 209.866009574314 -42.8909925384661 320536.847087329 T 38 CATAB v2.0f-lin.ifort 2019-Nov-07 02:08:49 2019-Nov-07 02:08
2018-Jul-16 08:40 00:02 Jupiter 1.99824547434929 1.99822927059981 1.99826167811297 9.02166456536406 8.97455655173773 2458315.860889785 2.34479893906628 853.15989393666 175.087274446888 -20.1156402516459 425358.994379675 T 38 CATAB v2.0f-lin.ifort 2019-Nov-07 02:08:49 2019-Nov-07 02:08
2065-Jan-11 18:28 00:05 Jupiter 1.17841428688884 1.17836491811586 1.17846365764003 5.54169913053575 5.41044046614866 2475297.269590072 4.95848869502448 3485.49650306887 368.903317956475 -48.1934977532196 244314.652182167 T 38 CATAB v2.0f-lin.ifort 2019-Nov-07 02:08:49 2019-Nov-07 02:08
2125-Jul-25 18:14 00:10 Jupiter 1.2615617318302 1.26152353504141 1.26159992892822 7.02578846734393 6.92956620457225 2497406.259385954 9.90077717232864 2155.0606931127 320.716567917172 -29.36006626142 184582.36307375 T 38 CATAB v2.0f-lin.ifort 2019-Nov-07 02:08:49 2019-Nov-07 02:08
2161-Jan-09 11:22 00:07 Jupiter 1.65393565102479 1.6538811124422 1.65399018975264 8.17570803734807 8.11282632876292 2510357.973379701 6.58137687100957 2830.91665381829 372.500129499891 -18.1763068707458 114036.530134199 T 38 CATAB v2.0f-lin.ifort 2019-Nov-07 02:08:49 2019-Nov-07 02:08

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin