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 ]  
47978 (2000 WJ166)
Classification: Main-belt Asteroid          SPK-ID: 2047978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03811267347727797 8.869e-08  
a 2.992730928367285 2.7655e-08 au
q 2.878669951689072 2.7072e-07 au
i 9.698963600771943 8.9215e-06 deg
node 221.8279006171245 3.4454e-05 deg
peri 164.5158562446291 8.282e-05 deg
M 232.6766042100854 7.3735e-05 deg
tp 2459269.314448880959
(2021-Feb-23.81444888)
0.00038865 TDB
period 1891.036600959217
5.18
2.6212e-05
7.176e-08
d
yr
n .1903717780065136 2.6387e-09 deg/d
Q 3.106791905045498 2.8709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      7275 days (19.92 yr)  
   first obs. used      1998-05-24  
   last obs. used      2018-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55199  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 00:20:24  

Additional Information
 Earth MOID = 1.88415 au 
 Jupiter MOID = 2.09743 au 
 T_jup = 3.233 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO351172  
diameter diameter 6.456 km 0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.089   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47978 (2000 WJ166)          Discovered 2000-Nov-24 by LONEOS at Anderson Mesa
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 17:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin