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 ]  
P/2011 NO1 (Elenin)
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1003138
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ hide orbit diagram ]
Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2455758.5 (2011-Jul-16.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7765212519592289 0.002052  
a 5.561717039442158 0.044161 AU
q 1.242925560931557 0.0015473 AU
i 15.2723383832699 0.080272 deg
node 296.0964602238851 0.012566 deg
peri 263.6169667998349 0.11972 deg
M 13.25587756758994 0.14093 deg
tp 2455582.092215817294
(2011-Jan-20.59221582)
0.26609 JED
period 4790.841042545958
13.12
57.06
0.1562
d
yr
n .07514338230030027 0.00089498 deg/d
Q 9.880508517952757 0.078453 AU
  Orbit Determination Parameters
   # obs. used (total)      57  
   data-arc span      22 days  
   first obs. used      2011-07-07  
   last obs. used      2011-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      7  
   fit RMS      .89546  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-18 11:57:24  

Additional Information
 Earth MOID = .380652 AU 
 T_jup = 2.192 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.3 mag 0.6 8 from 41 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 14.   n/a 8 autocmod 2.5c
comet nuclear magnitude M2 16.7 mag 0.2 8 from 7 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 8 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 8 autocmod 2.5c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2011.1   P/2011 NO1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-22 01:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin