+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11332 Jameswatt (1996 GO20) Classification: Main-belt Asteroid          SPK-ID: 2011332 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1182771128739599 2.908e-08   a 2.624266551641102 1.0038e-08 au q 2.31387588050129 7.8935e-08 au i 2.873376148453244 3.9273e-06 deg node 197.7429423357224 5.8804e-05 deg peri 267.7047976166733 6.134e-05 deg M 338.2527077617814 1.738e-05 deg tp 2459094.302202142452 (2020-Sep-01.80220214) 7.5104e-05 TDB period 1552.781486604471 4.25 8.9093e-06 2.439e-08 d yr n .2318420222714185 1.3302e-09 deg/d Q 2.934657222780914 1.1225e-08 au   Orbit Determination Parameters    # obs. used (total)      1950      data-arc span      14220 days (38.93 yr)      first obs. used      1981-11-24      last obs. used      2020-10-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49196      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:00:14   Additional Information  Earth MOID = 1.33286 au   Jupiter MOID = 2.18828 au   T_jup = 3.391  [ 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 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.arc Last Updated: 2013-03-29 Alternate Designations  1996 GO20 = 1981 WC3 = 1998 UU15  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-02 00:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin