+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1032681932983892 1.4888e-08   a 2.331639747381596 6.9382e-09 au q 2.090855523246786 3.4608e-08 au i 5.40731319927385 5.5882e-07 deg node 211.6124354091224 5.8301e-06 deg peri 220.0432402489345 1.0617e-05 deg M 133.6201484744166 7.6159e-06 deg tp 2458717.819169548099 (2019-Aug-22.31916955) 2.7411e-05 TDB period 1300.440846284152 3.56 5.8045e-06 1.589e-08 d yr n .2768292006734911 1.2356e-09 deg/d Q 2.572423971516406 7.6547e-09 au   Orbit Determination Parameters    # obs. used (total)      2313      data-arc span      12031 days (32.94 yr)      first obs. used      1988-03-10      last obs. used      2021-02-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45482      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:06:53   Additional Information  Earth MOID = 1.10772 au   Jupiter MOID = 2.66425 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 14.08   n/a E2021B10   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. 2020-October); 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 ] 2021-Apr-16 07:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin