+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17484 Ganghofer (1991 RY4) Classification: Main-belt Asteroid          SPK-ID: 2017484 [ 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 .1716690326110655 4.445e-08   a 2.701145802267996 1.1443e-08 au q 2.237442715451209 1.1773e-07 au i 2.211332247041332 3.7583e-06 deg node 214.9114061624257 9.3123e-05 deg peri 148.0545834293484 9.3631e-05 deg M 168.9083422164162 1.2586e-05 deg tp 2458239.702518466488 (2018-May-01.20251847) 5.4415e-05 TDB period 1621.513122194656 4.44 1.0304e-05 2.821e-08 d yr n .2220148545654405 1.4108e-09 deg/d Q 3.164848889084783 1.3408e-08 au   Orbit Determination Parameters    # obs. used (total)      1435      data-arc span      15150 days (41.48 yr)      first obs. used      1978-11-29      last obs. used      2020-05-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50903      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:20:45   Additional Information  Earth MOID = 1.23542 au   Jupiter MOID = 2.29867 au   T_jup = 3.345  [ hide covariance matrix ] Orbital Elements at Epoch 2456907.5 (2014-Sep-07.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .169014245061773 4.405e-08   q 2.245864676080897 1.1623e-07 au tp 2456612.152489726263 (2013-Nov-15.65248973) 5.1873e-05 TDB node 215.2399124694204 9.3665e-05 deg peri 146.9971983390275 9.4187e-05 deg i 2.202456928056158 3.748e-06 deg   Orbit Determination Parameters    # obs. used (total)      1435      data-arc span      15150 days (41.48 yr)      first obs. used      1978-11-29      last obs. used      2020-05-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50903      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:20:45   Additional Information  Jupiter MOID = 2.29867 au   T_jup = 3.345  Orbit Covariance (6×6)   e q tp node peri i e 1.940372513770759E-15 -5.104125106284798E-15 6.957179863770943E-13 2.01300702362384E-14 5.439847133142467E-14 1.154575012644032E-16 q -5.104125106284798E-15 1.350991864591043E-14 -1.734029559395316E-12 -5.167203488032315E-14 -1.219504888417194E-13 -2.733141700245077E-16 tp 6.957179863770943E-13 -1.734029559395316E-12 2.690783080097149E-9 1.932503597780813E-11 5.229818030067677E-10 -4.753491860594838E-13 node 2.01300702362384E-14 -5.167203488032315E-14 1.932503597780813E-11 8.773061683421444E-9 -8.762843667482498E-9 -5.87020907651892E-11 peri 5.439847133142467E-14 -1.219504888417194E-13 5.229818030067677E-10 -8.762843667482498E-9 8.871209712075498E-9 5.855110258486595E-11 i 1.154575012644032E-16 -2.733141700245077E-16 -4.753491860594838E-13 -5.87020907651892E-11 5.855110258486595E-11 1.404718612396079E-11 [ 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 14.6   n/a MPO416895   diameter diameter 4.741 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.072   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17484 Ganghofer           Discovered 1991 Sept. 13 by F. Borngen and L. D. Schmadel at Tautenburg. German author Ludwig Ganghofer (1855-1920), son of a forester, studied philosophy, was a dramatic advisor and editor, first in Vienna and later in Bavaria. He wrote numerous popular romantic dramas, short stories and novels, mainly with climbing or hunting themes. Some of these were made into movies. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010309/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1991 RY4 = 1978 WP1 = 1978 WY16  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 20:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin