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JPL Small-Body Database Browser
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159865 Silvialonso (2004 PX66)
Classification: Main-belt Asteroid          SPK-ID: 2159865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1966631792905231 6.0098e-08  
a 2.35159359654504 1.5116e-08 au
q 1.889121723449257 1.481e-07 au
i 11.1119970793052 6.092e-06 deg
node 263.9925726093029 2.8965e-05 deg
peri 36.86785615537525 3.3296e-05 deg
M 57.90319490204947 1.5668e-05 deg
tp 2458388.643468984861
(2018-Sep-27.14346898)
5.6475e-05 TDB
period 1317.169998900192
3.61
1.27e-05
3.477e-08
d
yr
n .273313239977066 2.6352e-09 deg/d
Q 2.814065469640823 1.8088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      6072 days (16.62 yr)  
   first obs. used      2001-12-18  
   last obs. used      2018-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57667  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 02:54:18  

Additional Information
 Earth MOID = .884719 au 
 Jupiter MOID = 2.41117 au 
 T_jup = 3.506 
[ 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 16.0   n/a MPO449859  

159865 Silvialonso           Discovered 2004 Aug. 12 by J. Manteca at Begues.
Silvia Alonso Perez (b. 1976), of La Laguna, Tenerife, was responsible for teaching astrometry to many Spanish amateur astronomers. This was the beginning of the Minor Planet Center's assignment of many new observatory codes in Spain.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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