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 ]  
C/2007 S2 (Lemmon)
Classification: Jupiter-family Comet          SPK-ID: 1002478
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454609.5 (2008-May-23.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5570565858744083 3.8738e-06  
a 12.547718383796 0.00011686 au
q 5.557929220405052 3.7751e-06 au
i 16.86305017076221 3.0333e-05 deg
node 296.2531536323054 5.7512e-05 deg
peri 210.4704844071931 0.00015418 deg
M 357.4519212675403 5.9389e-05 deg
tp 2454724.409494363289
(2008-Sep-14.90949436)
0.0016776 TDB
period 16234.74873197947
44.45
0.22679
0.0006209
d
yr
n .02217465794779233 3.0977e-07 deg/d
Q 19.53750754718695 0.00018195 au
  Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      2775 days (7.60 yr)  
   first obs. used      2003-10-03  
   last obs. used      2011-05-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .49668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:12  

Additional Information
 Earth MOID = 4.58403 au 
 Jupiter MOID = .506474 au 
 T_jup = 2.883 
[ 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 10.4   0.6 46 2 parameter fit from 194 observations, autocmod 2.9c
comet total magnitude slope K1 6.25   n/a 46 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.7   C/2007 S2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-18 19:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin