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 ]  
136841 (1997 WU50)
Classification: Main-belt Asteroid          SPK-ID: 2136841
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3749245436166594 6.8978e-08  
a 2.747938693121373 1.4783e-08 au
q 1.717669032716283 1.9279e-07 au
i 11.28423834213219 5.8051e-06 deg
node 68.22668356239967 3.0827e-05 deg
peri 304.0687603774142 3.137e-05 deg
M 278.69041851048 6.833e-06 deg
tp 2458976.292588708498
(2020-May-06.79258871)		 3.3777e-05 TDB
period 1663.830134859273
4.56		 1.3427e-05
3.676e-08		 d
yr
n .2163682412390306 1.746e-09 deg/d
Q 3.778208353526464 2.0326e-08 au
   Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      7448 days (20.39 yr)  
   first obs. used      1997-11-29  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56789  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:35:34  

Additional Information
 Earth MOID = .747928 au 
 Jupiter MOID = 1.78879 au 
 T_jup = 3.215 
[ 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 15.3   n/a MPO436675  
diameter diameter 2.176 km 0.522 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.258   0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

136841 (1997 WU50)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1997 WU50 = 2003 AJ78 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-25 12:00 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin