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JPL Small-Body Database Browser
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26987 (1997 WP1)
Classification: Main-belt Asteroid          SPK-ID: 2026987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08613100778287547 4.3582e-08  
a 2.869259328230986 1.4165e-08 au
q 2.622127130700035 1.2603e-07 au
i .9337627242781864 3.7896e-06 deg
node 261.889753272336 0.00030611 deg
peri 112.0440085722069 0.00030697 deg
M 261.0766951832394 2.4445e-05 deg
tp 2459488.308368234393
(2021-Sep-30.80836823)
0.00012187 TDB
period 1775.223875604159
4.86
1.3146e-05
3.599e-08
d
yr
n .2027913239266692 1.5017e-09 deg/d
Q 3.116391525761937 1.5385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1225  
   data-arc span      14293 days (39.13 yr)  
   first obs. used      1980-03-23  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56264  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:26:28  

Additional Information
 Earth MOID = 1.62278 au 
 Jupiter MOID = 2.33595 au 
 T_jup = 3.293 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO400274  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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