+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5035 Swift (1991 UX) Classification: Main-belt Asteroid          SPK-ID: 2005035 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1567782526946979 3.1559e-08   a 2.609843013243463 1.1771e-08 au q 2.200676385819688 8.2549e-08 au i 13.4907930420789 4.9526e-06 deg node 51.88247626687773 1.8618e-05 deg peri 53.03807007153691 2.5674e-05 deg M 229.0676703242866 1.7619e-05 deg tp 2459560.598485358655 (2021-Dec-12.09848536) 7.6134e-05 TDB period 1539.997456919283 4.22 1.0419e-05 2.853e-08 d yr n .233766619797002 1.5815e-09 deg/d Q 3.019009640667239 1.3616e-08 au   Orbit Determination Parameters    # obs. used (total)      2445      data-arc span      15239 days (41.72 yr)      first obs. used      1978-09-27      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39165      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 16:15:41   Additional Information  Earth MOID = 1.24441 au   Jupiter MOID = 2.27458 au   T_jup = 3.354  [ 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 12.3   n/a MPO448964   diameter diameter 8.859 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 9.4752 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Warner, B.D. (2005) Minor Planet Bull. 32, 54-58.] [Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.316   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   5035 Swift (1991 UX)          Discovered 1991-Oct-18 by Ueda and Kaneda at Kushiro Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1991 UX = 1949 WL = 1978 SX = 1978 TR9 = 1980 BN1 = 1988 AD2 = 1990 JE1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-15 06:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin