Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
26989 (1997 WO7)
Classification: Main-belt Asteroid          SPK-ID: 2026989
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07978173228375539 4.9627e-08  
a 3.064671570088058 2.6675e-08 au
q 2.820166763345656 1.4759e-07 au
i 10.67786345334187 5.856e-06 deg
node 58.77248461614315 3.3532e-05 deg
peri 33.54240328527283 6.239e-05 deg
M 105.4613412657336 4.8598e-05 deg
tp 2456826.429637876843
(2014-Jun-17.92963788)
0.00026689 JED
period 1959.631158526578
5.37
2.5585e-05
7.005e-08
d
yr
n .1837080403797414 2.3985e-09 deg/d
Q 3.309176376830459 2.8803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      962  
   data-arc span      6439 days (17.63 yr)  
   first obs. used      1997-10-29  
   last obs. used      2015-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5186  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:39:54  

Additional Information
 Earth MOID = 1.8426 au 
 Jupiter MOID = 1.9568 au 
 T_jup = 3.201 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO296347  
rotation period rot_per 6.1293 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

26989 (1997 WO7)          Discovered 1997-Nov-19 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WO7 = 1998 WC25 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-12 09:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin