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26987 (1997 WP1)
Classification: Main-belt Asteroid          SPK-ID: 2026987
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08700899765455995 5.3926e-08  
a 2.86717838491763 2.8054e-08 au
q 2.617708067549127 1.6192e-07 au
i .9335869571271178 4.9923e-06 deg
node 261.9173437821887 0.00037345 deg
peri 113.1377733918473 0.00037556 deg
M 295.111619054122 3.9807e-05 deg
tp 2457720.128086663263
(2016-Nov-27.62808666)
0.00019884 JED
period 1773.292992080488
4.86
2.6026e-05
7.126e-08
d
yr
n .2030121370849358 2.9796e-09 deg/d
Q 3.116648702286134 3.0495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      896  
   data-arc span      12894 days (35.30 yr)  
   first obs. used      1980-03-23  
   last obs. used      2015-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58912  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:09:42  

Additional Information
 Earth MOID = 1.61693 au 
 Jupiter MOID = 2.34232 au 
 T_jup = 3.294 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO263579  

26987 (1997 WP1)          Discovered 1997-Nov-21 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WP1 = 1980 FN8 = 1999 CJ111 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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