+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3722 Urata (1927 UE) Classification: Main-belt Asteroid          SPK-ID: 2003722 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1995481602319028 3.0999e-08   a 2.236272130542929 7.0124e-09 au q 1.790028141115209 7.0939e-08 au i 6.461125211460844 3.4507e-06 deg node 232.3014531883977 2.8303e-05 deg peri 136.4822797299772 2.9351e-05 deg M 328.3276969337523 8.4476e-06 deg tp 2459307.963887655920 (2021-Apr-03.46388766) 2.885e-05 TDB period 1221.477310166274 3.34 5.7454e-06 1.573e-08 d yr n .2947250816726139 1.3863e-09 deg/d Q 2.682516119970648 8.4117e-09 au   Orbit Determination Parameters    # obs. used (total)      2848      data-arc span      34002 days (93.09 yr)      first obs. used      1927-10-29      last obs. used      2020-12-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41601      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:12:43   Additional Information  Earth MOID = .795061 au   Jupiter MOID = 2.80659 au   T_jup = 3.603  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.84   n/a E2021B10   diameter diameter 7.868 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 5.567 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm] [Shipley, H.; Dillard, A.; Kendall, J.; Reichert, M.; et al. (2008) Minor Planet Bull. 35, 99-101.] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.197   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   3722 Urata (1927 UE)          Discovered 1927-Oct-29 by Reinmuth, K. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1927 UE = 1937 UL = 1937 VP = 1967 TA = 1984 YV2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-05 17:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin