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16192 Laird (2000 AU207)
Classification: Main-belt Asteroid          SPK-ID: 2016192
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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2318337882232533 5.0423e-08  
a 2.307850064188586 1.4237e-08 au
q 1.772812441156468 1.1615e-07 au
i 2.453575690256829 4.8729e-06 deg
node 109.283268926905 0.00012652 deg
peri 226.1397637580853 0.00012773 deg
M 333.1436908701693 1.9566e-05 deg
tp 2457696.033048991956
7.0027e-05 JED
period 1280.589133482352
n .2811206112775915 2.6014e-09 deg/d
Q 2.842887687220704 1.7538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      13350 days (36.55 yr)  
   first obs. used      1978-11-29  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57862  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:18:08  

Additional Information
 Earth MOID = .763347 au 
 Jupiter MOID = 2.52724 au 
 T_jup = 3.549 
[ 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 15.5 mag n/a MPO267769  

16192 Laird           Discovered 2000 Jan. 4 by Spacewatch at Kitt Peak.
Canadian physicist Elizabeth Rebecca Laird (1874-1969) was known for her research on soft x-rays, the Raman effect and the effects of microwave radiation on biological materials. As head of the physics department at Mt. Holyoke College from 1904 to 1940 she inspired many women to pursue scientific careers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

[ show close-approach data ]
Alternate Designations
 2000 AU207 = 1978 WN9 = 1981 NP 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-Apr-30 18:48 UT
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