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 ]  
442373 (2011 SW273)
Classification: Main-belt Asteroid          SPK-ID: 2442373
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070992092764631 8.5329e-08  
a 2.785388067693994 5.7505e-08 au
q 2.208536401346473 2.6364e-07 au
i 8.497710559174514 1.0273e-05 deg
node 138.9430113418803 5.2105e-05 deg
peri 301.6475128046255 5.7138e-05 deg
M 260.7594701297864 2.5185e-05 deg
tp 2459468.572974560060
(2021-Sep-11.07297456)
0.0001261 TDB
period 1697.958193713734
4.65
5.2582e-05
1.44e-07
d
yr
n .2120193543826993 6.5658e-09 deg/d
Q 3.362239734041515 6.9414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      3751 days (10.27 yr)  
   first obs. used      2008-01-13  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48603  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:03:28  

Additional Information
 Earth MOID = 1.2382 au 
 Jupiter MOID = 1.92847 au 
 T_jup = 3.284 
[ 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
absolute magnitude H 16.7   n/a MPO440831  

442373 (2011 SW273)          Discovered 2008-Jan-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 SW273 = 2008 AW71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-13 09:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin