Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
178P/Hug-Bell
Classification: Jupiter-family Comet          SPK-ID: 1000283
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456799.5 (2014-May-22.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4736044547790138 8.4648e-07  
a 3.671379251406218 1.7005e-07 AU
q 1.932597682756992 3.1284e-06 AU
i 10.97487311421093 2.7805e-05 deg
node 103.5726462427146 3.7437e-05 deg
peri 296.9127640125242 0.0002132 deg
M 42.44995279317303 4.8081e-05 deg
tp 2456496.517872015642
(2013-Jul-23.01787202)
0.00033682 JED
period 2569.462600012845
7.03
0.00017851
4.887e-07
d
yr
n .1401071181180845 9.734e-09 deg/d
Q 5.410160820055443 2.5058e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -2.111635150008097E-10 3.405E-12
  Orbit Determination Parameters
   # obs. used (total)      649  
   data-arc span      5291 days (14.49 yr)  
   first obs. used      1999-10-10  
   last obs. used      2014-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .74383  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-May-12 11:44:05  

Additional Information
 Earth MOID = .969235 AU 
 T_jup = 2.870 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.8 mag 0.6 33 2 parameter fit from 244 observations, autocmod 2.5c
comet total magnitude slope K1 10.   n/a 33 autocmod 2.5c
comet nuclear magnitude M2 15.9 mag 0.7 33 from 357 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 33 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 33 autocmod 2.5c

[ show close-approach data ]
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 | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-01 12:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin