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 ]  
72P/Denning-Fujikawa
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000020
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 2456981.5 (2014-Nov-20.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8191545266363583 5.9575e-07  
a 4.336084232317145 8.3349e-07 au
q .7841612055380167 2.7234e-06 au
i 9.169283869658974 7.652e-05 deg
node 36.10919645775216 0.00031423 deg
peri 337.8580424566273 0.00030724 deg
M 14.33936241459959 1.0935e-05 deg
tp 2456850.137219423717
(2014-Jul-11.63721942)
8.2091e-05 TDB
period 3297.957024875322
9.03
0.00095091
2.603e-06
d
yr
n .1091584872952096 3.1474e-08 deg/d
Q 7.888007259096272 1.5163e-06 au
  Orbit Determination Parameters
   # obs. used (total)      44  
   data-arc span      13080 days (35.81 yr)  
   first obs. used      1978-10-10  
   last obs. used      2014-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   norm. resid. RMS      1.0399  
   source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Nov-10 13:40:54  

Additional Information
 Earth MOID = .0852532 au 
 Jupiter MOID = .162384 au 
 T_jup = 2.234 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 18.3   1. 21 2 parameter fit from 18 observations, autocmod 2.6
comet total magnitude slope K1 33.   n/a 21 autocmod 2.6
comet nuclear magnitude M2 21.4   0.9 21 from 3 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 21 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 21 autocmod 2.6

72P/Denning-Fujikawa          Discovered 1881-Oct-04 by Denning, William F.
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1978.4   72P/1978 T2   1978 XIX   1978n 
 1879.1   72P/1881 T1   1881 V   1881f 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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