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
JPL Small-Body Database Browser
Search: [ help ]  
191P/McNaught
Classification: Jupiter-family Comet          SPK-ID: 1002466
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454959.5 (2009-May-08.0) TDB
Reference: JPL 63 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4204539437568819 2.5641e-07  
a 3.532636034978939 8.205e-08 au
q 2.04732528221437 9.2245e-07 au
i 8.760584035129821 8.4288e-06 deg
node 106.5235573365661 9.2582e-05 deg
peri 274.1771034804343 0.00015399 deg
M 89.47473273880969 4.7932e-05 deg
tp 2454356.739647825243
(2007-Sep-13.23964783)
0.00032917 TDB
period 2425.195584728374
6.64
8.4492e-05
2.313e-07
d
yr
n .1484416359104994 5.1716e-09 deg/d
Q 5.017946787743509 1.1655e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 6.509831033009138E-9 5.06E-10
A2 [EST] -7.159203076675717E-11 5.922E-12
A3 [EST] 2.473087705285404E-13 1.994E-10
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      7455 days (20.41 yr)  
   first obs. used      2000-08-05  
   last obs. used      2021-01-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .77797  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:27:52  

Additional Information
 Earth MOID = 1.07356 au 
 Jupiter MOID = .811998 au 
 T_jup = 2.951 
[ 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 13.4   01. 63 2 parameter fit from 278 observations, autocmod 2.9c
comet total magnitude slope K1 9.   n/a 63 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2007.7   191P/2007 N1       
 2001.1   191P/2000 P3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-19 10:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin