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 ]  
73P/Schwassmann-Wachmann 3-AT
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1002369
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2453839.5 (2006-Apr-14.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.686932227480063 0.0023875  
a 3.00135904388845 0.022557 au
q 0.939628790402723 0.00010463 au
i 11.3346206138147 0.019971 deg
node 69.84813048476539 0.028572 deg
peri 198.8104065064084 0.025051 deg
M 349.8990536028593 0.11848 deg
tp 2453892.788674827537
(2006-Jun-06.28867483)
0.024337 TDB
period 1899.220348634239
5.20
21.41
0.05862
d
yr
n .1895514652941045 0.0021369 deg/d
Q 5.063089297374168 0.038052 au
  Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      21 days  
   first obs. used      2006-04-07  
   last obs. used      2006-04-28  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      8  
   norm. resid. RMS      .75728  
   source      ORB  
   producer      Nick Mastrodemos  
   solution date      2006-Apr-30 19:00:55  

Additional Information
 Earth MOID = .0402083 au 
 T_jup = 2.816 
[ 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 21.0   0.5 1 from 9 observations
comet total magnitude slope K1 10.0   n/a 1 from 9 observations

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-17 21:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin