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96747 Crespodasilva (1999 QQ2)
Classification: Main-belt Asteroid          SPK-ID: 2096747
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049578609212243 9.7905e-08  
a 2.591147616374794 2.5749e-08 au
q 2.060071543591487 2.4232e-07 au
i 13.1726595484571 8.5684e-06 deg
node 344.7654324693312 3.6724e-05 deg
peri 57.60430577174336 4.3236e-05 deg
M 338.3259137510668 2.2601e-05 deg
tp 2457692.222304174351
9.6196e-05 JED
period 1523.479657851382
n .2363011531822623 3.5223e-09 deg/d
Q 3.122223689158101 3.1026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      5404 days (14.80 yr)  
   first obs. used      1999-07-16  
   last obs. used      2014-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50164  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 05:14:10  

Additional Information
 Earth MOID = 1.09714 au 
 Jupiter MOID = 2.46116 au 
 T_jup = 3.353 
[ 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 14.5 mag n/a MPO264034  

96747 Crespodasilva           Discovered 1999 Aug. 16 by L. Crespo da Silva at the Wallace Observatory.
Lucy d´Escoffier Crespo da Silva (1978-2000) was a promising student in planetary sciences at the Massachusetts Institute of Technology. As an observer of light curves of minor planets, she contributed data toward the discovery of spin-vector alignment in the Koronis family. The name was suggested by R. P. Binzel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

Alternate Designations
 1999 QQ2 = 2001 CG4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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