+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 47 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1814451575026476 2.2189e-08   a 2.655404275196064 9.4152e-09 au q 2.17359402824991 5.9125e-08 au i 11.9263756068968 1.1465e-06 deg node 181.749175663758 1.9621e-06 deg peri 44.01995368645947 5.9155e-06 deg M 200.7698296683242 7.7975e-06 deg tp 2459899.564520442802 (2022-Nov-16.06452044) 3.6341e-05 TDB period 1580.499642970896 4.33 8.4059e-06 2.301e-08 d yr n .2277760717005294 1.2114e-09 deg/d Q 3.137214522142219 1.1124e-08 au   Orbit Determination Parameters    # obs. used (total)      3069      data-arc span      26218 days (71.78 yr)      first obs. used      1949-05-29      last obs. used      2021-03-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .41953      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 17:50:56   Additional Information  Earth MOID = 1.18199 au   Jupiter MOID = 1.87594 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 12.56   n/a E2021B10   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-Apr-14 18:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin