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 ]  
243372 (2008 WN128)
Classification: Main-belt Asteroid          SPK-ID: 2243372
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1463796749763942 7.2076e-08  
a 2.438281591485822 1.9584e-08 au
q 2.081366724623202 1.8017e-07 au
i 1.733515777512875 5.2854e-06 deg
node 279.351139540889 0.00023159 deg
peri 213.6226837360874 0.00023253 deg
M 323.0520615313507 2.0332e-05 deg
tp 2459143.228902901686
(2020-Oct-20.72890290)
7.8984e-05 TDB
period 1390.670418275311
3.81
1.6754e-05
4.587e-08
d
yr
n .2588679497809889 3.1188e-09 deg/d
Q 2.795196458348442 2.245e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      8000 days (21.90 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:20:01  

Additional Information
 Earth MOID = 1.09599 au 
 Jupiter MOID = 2.24566 au 
 T_jup = 3.488 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456980.5 (2014-Nov-19.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1455289511951025 7.2461e-08  
q 2.083821345983453 1.8108e-07 au
tp 2456362.248579015606
(2013-Mar-10.74857902)
7.7709e-05 TDB
node 279.459832953863 0.00023182 deg
peri 213.6872190145215 0.00023277 deg
i 1.731966991163955 5.2853e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      8000 days (21.90 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:20:01  

Additional Information
 Jupiter MOID = 2.24566 au 
 T_jup = 3.488 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.250604305829139E-15 -1.306753580474899E-14 2.619274638430536E-12 9.706509122267635E-14 7.864885086743137E-13 7.565986091403825E-16
q -1.306753580474899E-14 3.279027542635146E-14 -6.601385277837954E-12 -2.389316396498934E-13 -1.951912799302194E-12 -1.670904563794105E-15
tp 2.619274638430536E-12 -6.601385277837954E-12 6.038703385635077E-9 4.956579372302058E-11 1.683948872285978E-9 1.579858015831552E-12
node 9.706509122267635E-14 -2.389316396498934E-13 4.956579372302058E-11 5.374277785384065E-8 -5.370063056340746E-8 3.230974984791339E-10
peri 7.864885086743137E-13 -1.951912799302194E-12 1.683948872285978E-9 -5.370063056340746E-8 5.41808798920405E-8 -3.2248383475482E-10
i 7.565986091403825E-16 -1.670904563794105E-15 1.579858015831552E-12 3.230974984791339E-10 -3.2248383475482E-10 2.793405282801314E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO494332  

243372 (2008 WN128)          Discovered 2008-Nov-22 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2008 WN128 = 2006 KE109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-05 11:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin