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 
[ 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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1993-Apr-11 16:51 00:02 Hygie 0.0290612544646603 0.0290488364535985 0.029073672494255 3.5530572929684 3.55305691878383 2449089.201771801 1.57242526892269 619.156054147512 102.691825122359 -3.62633887754406 7484.17571031108 T 14 CATAB v2.0f-lin.ifort 2020-May-21 11:14:20 2020-May-21 11:14
2182-Apr-05 18:32 01:06 Thisb 0.0233169127051972 0.0233014559110443 0.0233327389370535 1.72597764578896 1.72597747636745 2518114.272048479 65.9529573191619 4717.14341954348 98.7336424259568 -80.5684354438187 34748.0411410777 T 14 CATAB v2.0f-lin.ifort 2020-May-21 11:14:20 2020-May-21 11:14
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-27 02:28 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin