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JPL Small-Body Database Browser
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11332 Jameswatt (1996 GO20)
Classification: Main-belt Asteroid          SPK-ID: 2011332
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .118277108390338 2.9441e-08  
a 2.624266553532103 1.0241e-08 au
q 2.313875893934848 8.0122e-08 au
i 2.873376021718106 3.9817e-06 deg
node 197.7429461692217 5.8884e-05 deg
peri 267.7047965295814 6.1477e-05 deg
M 338.252704167142 1.7743e-05 deg
tp 2459094.302217748534
(2020-Sep-01.80221775)
7.6686e-05 TDB
period 1552.781488282832
4.25
9.0895e-06
2.489e-08
d
yr
n .2318420220208264 1.3571e-09 deg/d
Q 2.934657213129359 1.1452e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1870  
   data-arc span      13942 days (38.17 yr)  
   first obs. used      1981-11-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49225  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:00:52  

Additional Information
 Earth MOID = 1.33286 au 
 Jupiter MOID = 2.18828 au 
 T_jup = 3.391 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO350892  
diameter diameter 4.289 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11332 Jameswatt          
In 1765, Scottish inventor James Watt (1736-1819) suggested using a separate condenser in the steam engine, lessening the consumption of steam and fuel in fire engines. With the invention of the double-acting machine, in which the piston pushed as well as pulled, "Watt's engine" was nearly complete.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1996 GO20 = 1981 WC3 = 1998 UU15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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