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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
379370 (2009 WX242)
Classification: Main-belt Asteroid          SPK-ID: 2379370
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1293992613005584 6.9554e-08  
a 2.622756742978492 3.6926e-08 au
q 2.283373957866017 1.9682e-07 au
i 2.668059818405673 8.3724e-06 deg
node 165.861357600554 0.00011383 deg
peri 35.78655797313698 0.00011742 deg
M 318.975851281965 3.1128e-05 deg
tp 2458777.296035605181
(2019-Oct-20.79603561)
0.00013597 TDB
period 1551.441646122083
4.25
3.2764e-05
8.97e-08
d
yr
n .2320422433546506 4.9003e-09 deg/d
Q 2.962139528090967 4.1704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      3804 days (10.41 yr)  
   first obs. used      2008-09-06  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62846  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:12:28  

Additional Information
 Earth MOID = 1.28139 au 
 Jupiter MOID = 1.99545 au 
 T_jup = 3.390 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457194.5 (2015-Jun-21.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1297241520200133 6.9671e-08  
q 2.282709960631515 1.973e-07 au
tp 2457223.766945695106
(2015-Jul-20.26694570)
0.00012216 TDB
node 165.8727594487658 0.00011382 deg
peri 35.39672265597722 0.00011737 deg
i 2.667855154516937 8.3734e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      3804 days (10.41 yr)  
   first obs. used      2008-09-06  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62846  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:12:28  

Additional Information
 Jupiter MOID = 1.99545 au 
 T_jup = 3.390 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.854082903221618E-15 -1.358971915013246E-14 -4.320918861226167E-12 -1.063954595666246E-14 -8.762623051905967E-13 -1.464105550924376E-15
q -1.358971915013246E-14 3.892923082768884E-14 1.248139298770554E-11 3.368630516084982E-14 2.535069466336029E-12 4.602003834146565E-15
tp -4.320918861226167E-12 1.248139298770554E-11 1.492230338655548E-8 9.975054227926487E-12 3.507151596668363E-9 4.816350446618313E-12
node -1.063954595666246E-14 3.368630516084982E-14 9.975054227926487E-12 1.295570287655968E-8 -1.293910570133783E-8 -1.839820659807419E-10
peri -8.762623051905967E-13 2.535069466336029E-12 3.507151596668363E-9 -1.293910570133783E-8 1.377612384280168E-8 1.849027749331472E-10
i -1.464105550924376E-15 4.602003834146565E-15 4.816350446618313E-12 -1.839820659807419E-10 1.849027749331472E-10 7.011386649532672E-11

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 16.9   n/a MPO427885  

379370 (2009 WX242)          Discovered 2009-Nov-19 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2009 WX242 = 2008 SY37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-26 03:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin