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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08715140003769496 5.623e-08  
a 2.866253638039832 2.9965e-08 AU
q 2.616455620621525 1.6574e-07 AU
i .9338261301244435 5.0017e-06 deg
node 261.9211865279891 0.00040601 deg
peri 113.3349131175968 0.00040804 deg
M 213.688537007635 3.9119e-05 deg
tp 2457720.854390455422
(2016-Nov-28.35439046)
0.00019871 JED
period 1772.435154841454
4.85
2.7794e-05
7.61e-08
d
yr
n .2031103925109195 3.1851e-09 deg/d
Q 3.11605165545814 3.2576e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      12511 days (34.25 yr)  
   first obs. used      1980-03-23  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59524  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:56:16  

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 (327)
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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