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273987 Greggwade (2007 LQ30)
Classification: Main-belt Asteroid          SPK-ID: 2273987
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1211128427725382 4.4707e-07  
a 3.067328006271436 3.0626e-07 AU
q 2.695835191716081 1.59e-06 AU
i 7.221748930494395 2.3746e-05 deg
node 84.62346197664235 0.00021489 deg
peri 99.30287020334676 0.00026309 deg
M 259.2532673421121 0.00010508 deg
tp 2457549.619955175827
(2016-Jun-10.11995518)
0.00053543 JED
period 1962.179602732956
5.37
0.00029388
8.046e-07
d
yr
n .1834694436220752 2.7478e-08 deg/d
Q 3.438820820826792 3.4336e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      62  
   data-arc span      1833 days (5.02 yr)  
   first obs. used      2006-05-06  
   last obs. used      2011-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58482  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-12 08:21:57  

Additional Information
 Earth MOID = 1.71096 AU 
 T_jup = 3.209 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7 mag n/a MPO195377  

273987 Greggwade           Discovered 2007 June 11 by D. D. Balam at Mauna Kea.
Gregg Wade (b. 1971) is a Canadian astrophysicist recognized as a leading expert in the study of magnetic fields in medium and high-mass early-type stars. He is a professor of physics at the Royal Military College (Kingston) and adjunct professor of physics at Queens University.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-11-17Last Updated: 2014-11-10

[ show close-approach data ]
Alternate Designations
 2007 LQ30 = 2008 UO69 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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