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 ]  
27996 (1997 WJ5)
Classification: Main-belt Asteroid          SPK-ID: 2027996
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708730252237046 4.6478e-08  
a 3.16114058714573 2.3633e-08 au
q 2.620986931862701 1.476e-07 au
i 1.694934852448885 4.346e-06 deg
node 151.8714536443585 0.00017438 deg
peri 91.86339958862924 0.00017505 deg
M 98.47940463052031 2.0238e-05 deg
tp 2458038.925916787872
(2017-Oct-12.42591679)
0.00011157 TDB
period 2052.882739440442
5.62
2.3021e-05
6.303e-08
d
yr
n .175363157906489 1.9665e-09 deg/d
Q 3.70129424242876 2.7671e-08 au
  Orbit Determination Parameters
   # obs. used (total)      928  
   data-arc span      10287 days (28.16 yr)  
   first obs. used      1991-09-29  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56771  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:10:17  

Additional Information
 Earth MOID = 1.60851 au 
 Jupiter MOID = 1.32196 au 
 T_jup = 3.181 
[ 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 14.5   n/a MPO412385  
diameter diameter 7.398 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27996 (1997 WJ5)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WJ5 = 2000 EV41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-08 18:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin