+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11341 Babbage (1996 XE2) Classification: Main-belt Asteroid          SPK-ID: 2011341 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05664166276364312 2.6832e-08   a 2.381291518826939 7.4752e-09 au q 2.24641120767562 6.2836e-08 au i 7.357938985639029 3.3545e-06 deg node 75.06169193873933 2.9968e-05 deg peri 50.36418305333056 5.1369e-05 deg M 81.49610823932827 4.0623e-05 deg tp 2458696.655315002793 (2019-Aug-01.15531500) 0.00015151 TDB period 1342.200124179774 3.67 6.3201e-06 1.73e-08 d yr n .2682163363827716 1.263e-09 deg/d Q 2.516171829978258 7.8987e-09 au   Orbit Determination Parameters    # obs. used (total)      2297      data-arc span      15175 days (41.55 yr)      first obs. used      1979-01-24      last obs. used      2020-08-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45006      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:00:11   Additional Information  Earth MOID = 1.27015 au   Jupiter MOID = 2.52616 au   T_jup = 3.525  [ 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 13.5   n/a MPO358741   diameter diameter 4.404 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.302   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11341 Babbage           Discovered 1996 Dec. 3 by P. G. Comba at Prescott. Intending to automate complex arithmetical calculations, British mathematician Charles Babbage (1791-1871) developed plans for the analytical engine, a device controlled by punched cards, containing a "mill" to execute instructions and a memory unit to store partial results---the conceptual forerunner of modern computers. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19991123/MPCPages.arc Last Updated: 2010-06-11 Alternate Designations  1996 XE2 = 1979 BL1 = 1985 VA2 = 1985 XK  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-18 14:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin