+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5929 Manzano (1974 XT) Classification: Mars-crossing Asteroid          SPK-ID: 2005929 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3041922653253555 2.9162e-08   a 2.357772839590078 1.0425e-08 au q 1.640556578392576 7.0557e-08 au i 23.01728797318894 3.5253e-06 deg node 126.3258177950615 8.5001e-06 deg peri 277.8901771255678 1.1099e-05 deg M 223.3613280224513 9.9754e-06 deg tp 2459502.406129201595 (2021-Oct-14.90612920) 3.8599e-05 TDB period 1322.365066181726 3.62 8.7703e-06 2.401e-08 d yr n .272239496646327 1.8056e-09 deg/d Q 3.07498910078758 1.3596e-08 au   Orbit Determination Parameters    # obs. used (total)      2122      data-arc span      16726 days (45.79 yr)      first obs. used      1974-12-14      last obs. used      2020-09-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41824      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:39:45   Additional Information  Earth MOID = .813304 au   Jupiter MOID = 2.66574 au   T_jup = 3.387  [ 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 13.5   n/a MPO384808   diameter diameter 4.217 km 0.470 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   rotation period rot_per 3.7596 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2014) http://www.asu.cas.cz/~ppravec/neo.htm] [Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [McNeill, A.; Fitzsimmons, A.; Jedicke, R.; Lacerda, P.; et al. (2018) Astron. J. 156, A282.] geometric albedo albedo 0.411   0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   5929 Manzano           Discovered 1974 Dec. 14 by the Félix Aguilar Observatory team at the El Leoncito Station. José Roberto Manzano (1928-1999) took part in almost all the cosmic radiation projects developed in Argentina in the 1960s and was the initiator of ionospheric studies in the country. A researcher at the Argentinian Commission of Atomic Energy, he was also a visiting professor at the University of Minnesota. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070926/MPCPages.arc Last Updated: 2007-09-30 Alternate Designations  1974 XT = 1988 PB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-17 18:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin