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26989 (1997 WO7)
Classification: Main-belt Asteroid          SPK-ID: 2026989
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07876376802799817 6.6125e-08  
a 3.065759279247508 3.2518e-08 AU
q 2.824288526547174 2.091e-07 AU
i 10.68047870664582 9.2242e-06 deg
node 58.91774267273608 3.8463e-05 deg
peri 34.5404613194094 7.1048e-05 deg
M 354.3139488456034 5.7579e-05 deg
tp 2456831.468043313684
(2014-Jun-22.96804331)
0.00031355 JED
period 1960.674515618063
5.37
3.1195e-05
8.541e-08
d
yr
n .1836102816313279 2.9213e-09 deg/d
Q 3.307230031947842 3.5079e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      812  
   data-arc span      5977 days (16.36 yr)  
   first obs. used      1997-10-29  
   last obs. used      2014-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55154  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:23:02  

Additional Information
 Earth MOID = 1.84699 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 12.9 mag n/a PDS3 (MPO 14519)  

26989 (1997 WO7)          Discovered 1997-Nov-19 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
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 ]
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