+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20243 Den Bosch (1998 DB36) Classification: Main-belt Asteroid          SPK-ID: 2020243 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2173554003411893 3.3261e-08   a 2.339011334685314 7.9079e-09 au q 1.830614589632208 7.9219e-08 au i 11.46990955932675 4.3055e-06 deg node 7.04263696366952 1.7693e-05 deg peri 288.4287916460589 2.0263e-05 deg M 329.8504393668356 1.2131e-05 deg tp 2459109.927229359964 (2020-Sep-17.42722936) 4.4259e-05 TDB period 1306.612824276248 3.58 6.6262e-06 1.814e-08 d yr n .2755215571984066 1.3972e-09 deg/d Q 2.84740807973842 9.6267e-09 au   Orbit Determination Parameters    # obs. used (total)      1750      data-arc span      10824 days (29.63 yr)      first obs. used      1991-03-12      last obs. used      2020-10-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46954      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:03:59   Additional Information  Earth MOID = .85377 au   Jupiter MOID = 2.48091 au   T_jup = 3.507  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.1   n/a MPO381426   diameter diameter 5.562 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.157   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   20243 Den Bosch           Discovered 1998 Feb. 25 by E. W. Elst at the European Southern Observatory. Den Bosch (s-Hertogenbosch) is the capital of the province of North Brabant in the Netherlands. The city flourished in the 15th century, although it was nearly completely destroyed by a catastrophic fire in 1463. The painter Hieronymus Bosch lived almost his entire life in Den Bosch. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2017-01-12 Last Updated: 2017-01-17 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1997-Oct-24 13:06 < 00:01 David 0.0134990946586743 0.0134983332149352 0.01349985611462 8.17248278534948 8.17248264841135 2450746.046023070 0.281510047072697 91.2610191000027 36.8164535075153 -83.6352381989786 54552.7787149537 T 26 CATAB v2.0f-lin.ifort 2020-Nov-13 02:04:03 2020-Nov-13 02:04 Alternate Designations  1998 DB36 = 1991 ET4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 16:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin