+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15724 Zille (1990 TW3) Classification: Main-belt Asteroid          SPK-ID: 2015724 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1032207998942768 2.8257e-08   a 2.332014790300132 7.0835e-09 au q 2.091302358280068 6.5136e-08 au i 5.4068285088517 3.153e-06 deg node 211.6153884378644 3.6964e-05 deg peri 220.1306673149648 4.1736e-05 deg M 78.16873781436981 1.8136e-05 deg tp 2458718.060147276270 (2019-Aug-22.56014728) 6.5585e-05 TDB period 1300.754621649415 3.56 5.9265e-06 1.623e-08 d yr n .276762422372564 1.261e-09 deg/d Q 2.572727222320196 7.8146e-09 au   Orbit Determination Parameters    # obs. used (total)      2232      data-arc span      11738 days (32.14 yr)      first obs. used      1988-03-10      last obs. used      2020-04-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44886      source      ORB      producer      Otto Matic      solution date      2020-May-20 04:14:34   Additional Information  Earth MOID = 1.10875 au   Jupiter MOID = 2.66381 au   T_jup = 3.557  [ 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 14.0   n/a MPO347648   diameter diameter 3.724 km 0.247 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 5. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Higgins, D. (2011) Minor Planet Bull. 38, 41-46.] geometric albedo albedo 0.221   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15724 Zille           Discovered 1990 Oct. 12 by F. Borngen and L. D. Schmadel at Tautenburg. Graphic artist and photographer Heinrich Zille (1858-1929) portrayed the milieu of ordinary Berliners in the streets, working-class quarters and fairgrounds. His popular pictures appeared in several magazines. His sociocritical illustrations united comedy and tragedy in a unique way. The name was suggested by the first discoverer. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20001013/MPCPages.arc Last Updated: 2013-03-29 [ show close-approach data ] Alternate Designations  1990 TW3 = 1999 GH22  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-27 23:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin