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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07948038053381103 4.9869e-08  
a 3.067838435375588 2.6737e-08 AU
q 2.824005469115685 1.4899e-07 AU
i 10.67408187862692 5.9414e-06 deg
node 58.87287946027063 3.355e-05 deg
peri 34.39782358701209 6.249e-05 deg
M 31.15804991229668 4.9004e-05 deg
tp 2456830.630690638282
(2014-Jun-22.13069064)
0.00026792 JED
period 1962.669407820804
5.37
2.5658e-05
7.025e-08
d
yr
n .1834236568652262 2.3979e-09 deg/d
Q 3.311671401635492 2.8862e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      949  
   data-arc span      6356 days (17.40 yr)  
   first obs. used      1997-10-29  
   last obs. used      2015-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51881  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:24:13  

Additional Information
 Earth MOID = 1.84702 AU 
 T_jup = 3.200 
[ 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  

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 ]
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