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 ]  
233879 (2008 WM91)
Classification: Main-belt Asteroid          SPK-ID: 2233879
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1046820334009178 1.1064e-07  
a 3.016753324137476 3.8352e-08 au
q 2.700953451897787 3.3765e-07 au
i 8.619425903693868 8.4731e-06 deg
node 296.9761501662472 6.2339e-05 deg
peri 58.1321450249445 6.7759e-05 deg
M 185.1429943986269 3.0051e-05 deg
tp 2459930.084048988071
(2022-Dec-16.58404899)
0.00016761 TDB
period 1913.851014917973
5.24
3.6496e-05
9.992e-08
d
yr
n .1881024161201124 3.587e-09 deg/d
Q 3.332553196377165 4.2367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-08-15  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 11:14:06  

Additional Information
 Earth MOID = 1.70745 au 
 Jupiter MOID = 2.09502 au 
 T_jup = 3.222 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457409.5 (2016-Jan-22.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035967249557943 1.1057e-07  
q 2.704331100294627 3.3701e-07 au
tp 2458017.283734315715
(2017-Sep-20.78373432)
0.000155 TDB
node 296.9928326828682 6.2345e-05 deg
peri 58.46920543988008 6.7906e-05 deg
i 8.618318147106232 8.4714e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-08-15  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 11:14:06  

Additional Information
 Jupiter MOID = 2.09502 au 
 T_jup = 3.222 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.222480667921239E-14 -3.707014363434526E-14 -1.567857741593333E-12 -2.798055153729874E-15 -5.387241658071449E-13 -6.791196149446959E-15
q -3.707014363434526E-14 1.135767278783654E-13 6.263413792815593E-12 4.33095603512005E-16 1.840805240996986E-12 2.180738570425666E-14
tp -1.567857741593333E-12 6.263413792815593E-12 2.402454663672119E-8 -3.551586550314951E-11 4.320745803733921E-9 -3.897663734540242E-12
node -2.798055153729874E-15 4.33095603512005E-16 -3.551586550314951E-11 3.886836697825065E-9 -3.849092264868538E-9 3.265649816760198E-10
peri -5.387241658071449E-13 1.840805240996986E-12 4.320745803733921E-9 -3.849092264868538E-9 4.611228294912667E-9 -3.235519418681387E-10
i -6.791196149446959E-15 2.180738570425666E-14 -3.897663734540242E-12 3.265649816760198E-10 -3.235519418681387E-10 7.176442488560806E-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 15.8   n/a MPO427345  

233879 (2008 WM91)          Discovered 2008-Nov-23 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ 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 2020-Sep-18 07:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin