+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2002740313327905 3.7133e-08   a 2.426645727199451 9.7316e-09 au q 1.940651604796726 9.081e-08 au i 11.46081571310357 4.0206e-06 deg node 64.83852989634481 2.1263e-05 deg peri 24.70828129229204 2.3405e-05 deg M 250.7653917679519 1.0745e-05 deg tp 2459419.453426914664 (2021-Jul-23.95342691) 4.1877e-05 TDB period 1380.727556315153 3.78 8.3057e-06 2.274e-08 d yr n .2607321034142014 1.5684e-09 deg/d Q 2.912639849602175 1.1681e-08 au   Orbit Determination Parameters    # obs. used (total)      1179      data-arc span      25819 days (70.69 yr)      first obs. used      1949-11-25      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46077      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 00:58:27   Additional Information  Earth MOID = .962513 au   Jupiter MOID = 2.34768 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 ] 2020-Oct-19 22:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin