+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05646214987978175 1.7363e-08   a 2.381757811411736 7.3321e-09 au q 2.247278644886466 4.0666e-08 au i 7.3572640232799 2.6715e-07 deg node 75.06191429539868 3.4308e-06 deg peri 50.51940398573662 1.6174e-05 deg M 134.9877325568192 1.4155e-05 deg tp 2458697.072858865275 (2019-Aug-01.57285887) 5.267e-05 TDB period 1342.594377842564 3.68 6.1996e-06 1.697e-08 d yr n .2681375744910311 1.2382e-09 deg/d Q 2.516236977937007 7.7461e-09 au   Orbit Determination Parameters    # obs. used (total)      2335      data-arc span      15175 days (41.55 yr)      first obs. used      1979-01-24      last obs. used      2020-08-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45169      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:41:10   Additional Information  Earth MOID = 1.27095 au   Jupiter MOID = 2.52481 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 13.59   n/a E2021B10   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-Apr-20 08:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin