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 ]  
118954 (2000 WR99)
Classification: Main-belt Asteroid          SPK-ID: 2118954
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1595890848299459 5.7068e-08  
a 3.114190141942909 2.4469e-08 au
q 2.6171993872038 1.8362e-07 au
i 6.164617231219287 6.225e-06 deg
node 68.85257506061352 4.6024e-05 deg
peri 312.715435259727 4.8398e-05 deg
M 241.2903548979844 1.7244e-05 deg
tp 2459662.411034466529
(2022-Mar-23.91103447)
0.00010025 TDB
period 2007.317705340393
5.50
2.3658e-05
6.477e-08
d
yr
n .1793438074312968 2.1137e-09 deg/d
Q 3.611180896682017 2.8374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      580  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      2000-11-21  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59934  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:52:44  

Additional Information
 Earth MOID = 1.62551 au 
 Jupiter MOID = 1.85686 au 
 T_jup = 3.189 
[ 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 14.8   n/a MPO436572  
diameter diameter 6.859 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118954 (2000 WR99)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ 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-Oct-21 10:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin