+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14413 Geiger (1991 RT3) Classification: Main-belt Asteroid          SPK-ID: 2014413 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1477787981720754 1.8634e-08   a 2.28749323685241 5.6643e-09 au q 1.94945023548361 4.4086e-08 au i 5.014736257124309 8.6754e-07 deg node 224.0637963811952 1.4429e-05 deg peri 177.8847057830332 1.7102e-05 deg M 134.8900756653854 7.3729e-06 deg tp 2458727.004721822133 (2019-Aug-31.50472182) 2.5297e-05 TDB period 1263.683034524193 3.46 4.6937e-06 1.285e-08 d yr n .2848815645733098 1.0581e-09 deg/d Q 2.62553623822121 6.5013e-09 au   Orbit Determination Parameters    # obs. used (total)      1857      data-arc span      15920 days (43.59 yr)      first obs. used      1977-08-14      last obs. used      2021-03-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49161      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:28:24   Additional Information  Earth MOID = .956943 au   Jupiter MOID = 2.76201 au   T_jup = 3.581  [ hide covariance matrix ] Orbital Elements at Epoch 2456554.5 (2013-Sep-19.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1477711538842405 1.8596e-08   q 1.949291703222255 4.3975e-08 au tp 2456197.467969250705 (2012-Sep-26.96796925) 2.4118e-05 TDB node 224.1098517766777 1.4439e-05 deg peri 177.440619501647 1.7112e-05 deg i 5.011714965485545 8.6673e-07 deg   Orbit Determination Parameters    # obs. used (total)      1857      data-arc span      15920 days (43.59 yr)      first obs. used      1977-08-14      last obs. used      2021-03-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49161      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:28:24   Additional Information  Jupiter MOID = 2.76201 au   T_jup = 3.581  Orbit Covariance (6×6)   e q tp node peri i e 3.458279538346981E-16 -8.131976088796176E-16 -6.795465423819202E-14 2.039888932356964E-15 2.353514126793433E-15 2.155043411054353E-15 q -8.131976088796176E-16 1.933797601428282E-15 1.481102552613255E-13 -5.33877751569706E-15 -4.058969280285866E-15 -4.920973260640304E-15 tp -6.795465423819202E-14 1.481102552613255E-13 5.816845269296591E-10 -4.596250629479255E-11 2.165908563004348E-10 -1.476535492558934E-12 node 2.039888932356964E-15 -5.33877751569706E-15 -4.596250629479255E-11 2.084908812579505E-10 -2.237425228784683E-10 5.222629277326779E-12 peri 2.353514126793433E-15 -4.058969280285866E-15 2.165908563004348E-10 -2.237425228784683E-10 2.928128562568632E-10 -5.723375550847052E-12 i 2.155043411054353E-15 -4.920973260640304E-15 -1.476535492558934E-12 5.222629277326779E-12 -5.723375550847052E-12 7.512234029777864E-13 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.38   n/a E2021B10   diameter diameter 3.848 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.227   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14413 Geiger           Discovered 1991 Sept. 5 by F. Borngen and L. D. Schmadel at Tautenburg. German physicist Hans Geiger (1882-1945) studied radioactivity and scattering of \alpha -particles. Together with Erwin Wilhelm Mueller, he invented the GM (Geiger) counter, which became an important measuring instrument in nuclear physics. Together with K. Scheel, he edited the 24-volume Handbuch der Physik (1926-1929). NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20000726/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  1991 RT3 = 1977 PX1 = 1984 SB3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 17:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin