+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5692 Shirao (1992 FR) Classification: Main-belt Asteroid          SPK-ID: 2005692 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 49 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1812560527712022 2.2169e-08   a 2.655888670741736 9.421e-09 au q 2.174492773683334 5.9093e-08 au i 11.9259609960203 1.1461e-06 deg node 181.7420786447184 1.962e-06 deg peri 43.99591267384437 5.9203e-06 deg M 245.4349589523564 7.9312e-06 deg tp 2459899.609873834193 (2022-Nov-16.10987383) 3.6374e-05 TDB period 1580.932131862006 4.33 8.4118e-06 2.303e-08 d yr n .227713759967669 1.2116e-09 deg/d Q 3.137284567800137 1.1129e-08 au   Orbit Determination Parameters    # obs. used (total)      3097      data-arc span      26252 days (71.87 yr)      first obs. used      1949-05-29      last obs. used      2021-04-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .42018      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 14:51:04   Additional Information  Earth MOID = 1.18447 au   Jupiter MOID = 1.87466 au   T_jup = 3.334  [ 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 12.57   n/a MPCxxxxx   diameter diameter 9.548 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 2.8878 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pray, D. (2005) Minor Planet Bull. 32, 48-51.] [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Warner, Brian D. (2014) Minor Planet Bull. 41, 235-241.] geometric albedo albedo 0.223   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   5692 Shirao (1992 FR)          Discovered 1992-Mar-23 by Endate and Watanabe at Kitami Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1992 FR = 1949 KK = 1966 FO = 1966 FS = 1970 CH = 1976 SN2 = 1979 HT2 = 1979 HV1 = 1985 UW2 = 1989 SO9  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jul-29 20:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin