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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08715139301689026 5.4989e-08  
a 2.866253633504256 2.894e-08 AU
q 2.616455636604637 1.6359e-07 AU
i .9338260548255236 4.9956e-06 deg
node 261.9211633369597 0.00039054 deg
peri 113.3349380802766 0.00039259 deg
M 213.6885368374743 3.9118e-05 deg
tp 2457720.854389583358
(2016-Nov-28.35438958)
0.0001987 JED
period 1772.435150634386
4.85
2.6844e-05
7.349e-08
d
yr
n .2031103929930241 3.0762e-09 deg/d
Q 3.116051630403875 3.1462e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      888  
   data-arc span      12873 days (35.24 yr)  
   first obs. used      1980-03-23  
   last obs. used      2015-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59114  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:39:54  

Additional Information
 Earth MOID = 1.61744 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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