+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2595257221311411 4.1754e-08   a 2.445195061590583 7.258e-09 au q 1.810604047479787 1.0268e-07 au i 12.96684910610489 4.6758e-06 deg node 179.5998332106681 1.6525e-05 deg peri 147.9871977965784 1.808e-05 deg M 167.7305676572096 6.132e-06 deg tp 2458349.803594166702 (2018-Aug-19.30359417) 2.3724e-05 TDB period 1396.58924054156 3.82 6.2182e-06 1.702e-08 d yr n .2577708531252909 1.1477e-09 deg/d Q 3.079786075701379 9.1416e-09 au   Orbit Determination Parameters    # obs. used (total)      1720      data-arc span      24278 days (66.47 yr)      first obs. used      1953-08-16      last obs. used      2020-02-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49565      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 22:52:50   Additional Information  Earth MOID = .813828 au   Jupiter MOID = 2.36616 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 14.0   n/a MPO452448   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. 2019-August); 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 ] 2020-Jul-07 05:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin