+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19633 Rusjan (1999 RX42) Classification: Main-belt Asteroid          SPK-ID: 2019633 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2596683345154259 2.2922e-08   a 2.444882703594385 6.8151e-09 au q 1.81002408386646 5.5553e-08 au i 12.96881390379398 1.0267e-06 deg node 179.5955354677542 6.8274e-06 deg peri 148.0142943015846 7.1193e-06 deg M 219.2554922693243 4.0768e-06 deg tp 2459746.401672251781 (2022-Jun-15.90167225) 1.7196e-05 TDB period 1396.321641102362 3.82 5.8384e-06 1.598e-08 d yr n .2578202538748801 1.078e-09 deg/d Q 3.079741323322311 8.5848e-09 au   Orbit Determination Parameters    # obs. used (total)      1860      data-arc span      24691 days (67.60 yr)      first obs. used      1953-08-16      last obs. used      2021-03-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4863      source      ORB      producer      Otto Matic      solution date      2021-May-04 02:56:51   Additional Information  Earth MOID = .811404 au   Jupiter MOID = 2.36661 au   T_jup = 3.418  [ 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 14.02   n/a MPCxxxxx   diameter diameter 4.385 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 3.32420 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2018) http://www.asu.cas.cz/~ppravec/neo.htm] geometric albedo albedo 0.277   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19633 Rusjan           Discovered 1999 Sept. 13 at the Črni Vrh Observatory. Edvard Rusjan (1886-1911) was a pioneer Slovenian aircraft designer and pilot who performed his first fully controllable flight on 1909 Nov. 25 with an EDA I aircraft. He died after his aircraft crashed in Belgrade on 1911 Jan. 9. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070402/MPCPages.arc Last Updated: 2007-07-05 Alternate Designations  1999 RX42 = 1980 TB11 = 1998 FK52  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jun-20 17:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin