+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   367 Amicitia (A893 KB) Classification: Main-belt Asteroid          SPK-ID: 2000367 [ 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 83 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09630442785715011 3.1807e-08   a 2.219196115816576 5.1235e-09 au q 2.005477703580051 7.1633e-08 au i 2.94131671540342 3.4802e-06 deg node 83.44645609770654 7.0321e-05 deg peri 55.70179674249617 7.3039e-05 deg M 300.5572749716392 1.9201e-05 deg tp 2459399.883016413294 (2021-Jul-04.38301641) 6.4396e-05 TDB period 1207.513381570912 3.31 4.1817e-06 1.145e-08 d yr n .2981333420352317 1.0325e-09 deg/d Q 2.432914528053101 5.617e-09 au   Orbit Determination Parameters    # obs. used (total)      3215      data-arc span      41938 days (114.82 yr)      first obs. used      1906-03-28      last obs. used      2021-01-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41841      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:45:57   Additional Information  Earth MOID = 1.02042 au   Jupiter MOID = 2.57424 au   T_jup = 3.643  [ 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 10.7   n/a MPO435698   diameter diameter 21.243 km 0.632 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 5.05538 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Ford, L.; Stecher, G.; Jaeger, T.; Martin, P.; Smethells, W. (2001) IAPPP Communications 85, 35-43.] [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Kryszczynska A.; et al. (2008) Astron. Astrophys.; in preparation.] [Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.] [Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.] [Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.] [Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.393   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   367 Amicitia (A893 KB)          Discovered 1893-May-19 by Charlois, A. at Nice Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1940-Jan-19 22:44 < 00:01 Thisb 0.0492590173680442 0.0492560502570495 0.0492619845250562 4.23229613210226 4.23229609939735 2429648.447552431 0.866686858551647 166.454305855951 28.1768751790738 -27.7627865339569 127899.930236728 T 83 CATAB v2.0f-lin.ifort 2021-Feb-24 00:46:05 2021-Feb-24 00:46 Alternate Designations  A893 KB = 1927 UO = 1957 TM = 1965 GA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 05:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin