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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
P/2011 P1 (McNaught)
Classification: Jupiter-family Comet          SPK-ID: 1003139
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455833.5 (2011-Sep-29.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3596771664206813 0.00015899  
a 7.739337226789098 0.0011081 au
q 4.955674343083501 0.00053559 au
i 6.170965019659189 0.00036118 deg
node 9.531979043645689 0.0016922 deg
peri 342.5814462413733 0.020611 deg
M 19.86729288970882 0.0028267 deg
tp 2455399.499453518729
(2010-Jul-21.99945352)
0.14818 TDB
period 7864.191543387842
21.53
1.6889
0.004624
d
yr
n .04577711491560572 9.8311e-06 deg/d
Q 10.52300011049469 0.0015066 au
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      177 days  
   first obs. used      2011-08-01  
   last obs. used      2012-01-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .70022  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:54  

Additional Information
 Earth MOID = 3.95039 au 
 Jupiter MOID = .00256059 au 
 T_jup = 2.935 
[ 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 6.9   0.8 24 from 56 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 11.75   n/a 24 autocmod 2.9c
comet nuclear magnitude M2 12.3   0.9 24 from 54 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 24 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 24 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2010.6   P/2011 P1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-18 19:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin