+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15265 Ernsting (1990 TG13) Classification: Main-belt Asteroid          SPK-ID: 2015265 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2004148618628437 3.1648e-08   a 2.42584039544599 9.1396e-09 au q 1.939665927691375 7.9119e-08 au i 11.46091690786858 3.4027e-06 deg node 64.827296419893 2.0901e-05 deg peri 24.81608283691764 2.3008e-05 deg M 302.8386876697528 1.0684e-05 deg tp 2459419.624759576898 (2021-Jul-24.12475958) 4.1267e-05 TDB period 1380.040279550074 3.78 7.7992e-06 2.135e-08 d yr n .2608619511579535 1.4742e-09 deg/d Q 2.912014863200604 1.0971e-08 au   Orbit Determination Parameters    # obs. used (total)      1389      data-arc span      26009 days (71.21 yr)      first obs. used      1949-11-25      last obs. used      2021-02-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4463      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:53:33   Additional Information  Earth MOID = .961249 au   Jupiter MOID = 2.34831 au   T_jup = 3.456  [ 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 14.6   n/a MPO337388   diameter diameter 6.308 km 0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.054   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15265 Ernsting           Discovered 1990 Oct. 12 by L. D. Schmadel and F. Börngen at Tautenburg. German science fiction writer Walter Ernsting (b. 1920; pen name Clark Darlton) founded the German Science Fiction Club in 1955. His novels are characterized by his desire for humanity and peace. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030614/MPCPages.arc Last Updated: 2005-04-26 Alternate Designations  1990 TG13 = 1994 WC1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-17 01:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin