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JPL Small-Body Database Browser
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8688 Delaunay (1992 PV1)
Classification: Main-belt Asteroid          SPK-ID: 2008688
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736281898763306 3.1738e-08  
a 2.27236146194587 6.8924e-09 au
q 1.877815454563476 7.4229e-08 au
i 4.446569620151632 3.3199e-06 deg
node 151.761655658961 4.7415e-05 deg
peri 176.359094452031 4.8561e-05 deg
M 35.82270195015655 1.0532e-05 deg
tp 2458875.999702649104
(2020-Jan-27.49970265)
3.6475e-05 TDB
period 1251.164892829271
3.43
5.6925e-06
1.559e-08
d
yr
n .2877318585769528 1.3091e-09 deg/d
Q 2.666907469328263 8.0891e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1855  
   data-arc span      9943 days (27.22 yr)  
   first obs. used      1992-06-28  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5153  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:01:56  

Additional Information
 Earth MOID = .866504 au 
 Jupiter MOID = 2.67009 au 
 T_jup = 3.588 
[ 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 MPO492852  

8688 Delaunay           Discovered 1992 Aug. 8 by E. W. Elst at Caussols.
Charles-Eugène Delaunay (1816-1872) was a French mathematician and astronomer famous for his Théorie du mouvement de la lune, 1860-1867. Made a member of the Académie des Sciences in 1855, he succeeded Leverrier as director of the Paris Observatory in 1870.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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