+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   587 Hypsipyle (A906 DM) Classification: Main-belt Asteroid          SPK-ID: 2000587 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1669154344574904 5.4696e-08   a 2.335161277442478 6.6664e-09 au q 1.945386818289859 1.3062e-07 au i 24.99186128558191 4.9091e-06 deg node 324.5610228299851 7.8887e-06 deg peri 188.4196275219267 1.3081e-05 deg M 2.25918010618623 1.2127e-05 deg tp 2458992.320587670821 (2020-May-22.82058767) 4.3892e-05 TDB period 1303.388087758675 3.57 5.5813e-06 1.528e-08 d yr n .2762032301668963 1.1828e-09 deg/d Q 2.724935736595098 7.7791e-09 au   Orbit Determination Parameters    # obs. used (total)      2362      data-arc span      41767 days (114.35 yr)      first obs. used      1906-02-22      last obs. used      2020-06-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .37395      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:28:00   Additional Information  Earth MOID = .95879 au   Jupiter MOID = 2.30166 au   T_jup = 3.426  [ hide covariance matrix ] Orbital Elements at Epoch 2456854.5 (2014-Jul-16.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1669050859812237 5.4766e-08   q 1.945600470059572 1.3075e-07 au tp 2456385.963463039267 (2013-Apr-03.46346304) 4.0285e-05 TDB node 324.5945380881891 7.8861e-06 deg peri 188.499534391866 1.3077e-05 deg i 24.99690963465358 4.9098e-06 deg   Orbit Determination Parameters    # obs. used (total)      2362      data-arc span      41767 days (114.35 yr)      first obs. used      1906-02-22      last obs. used      2020-06-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .37395      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:28:00   Additional Information  Jupiter MOID = 2.30166 au   T_jup = 3.426  Orbit Covariance (6×6)   e q tp node peri i e 2.999337449427674E-15 -7.156006730513877E-15 -9.434241197406788E-13 -1.49221968377295E-14 -1.613398069328307E-13 -1.961167979169701E-14 q -7.156006730513877E-15 1.709606487862133E-14 2.24839606086618E-12 3.599869215402824E-14 3.856158481755009E-13 4.688502063336295E-14 tp -9.434241197406788E-13 2.24839606086618E-12 1.622848491945381E-9 6.429732287866569E-12 4.231766859176623E-10 1.444780876315674E-11 node -1.49221968377295E-14 3.599869215402824E-14 6.429732287866569E-12 6.219000919664276E-11 -5.434725723727721E-11 -4.813336351299649E-12 peri -1.613398069328307E-13 3.856158481755009E-13 4.231766859176623E-10 -5.434725723727721E-11 1.709999309689896E-10 7.96493780695822E-12 i -1.961167979169701E-14 4.688502063336295E-14 1.444780876315674E-11 -4.813336351299649E-12 7.96493780695822E-12 2.410627215174731E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.9   n/a MPO309147   diameter diameter 11.022 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 2.8881 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.] [Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Aimar, F.; Kossuth, C.; Ghio, G. (2020) Minor Planet Bull. 47, 152-153.] geometric albedo albedo 0.208   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   587 Hypsipyle (A906 DM)          Discovered 1906-Feb-22 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A906 DM = 1931 CH = 1956 EN1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-18 12:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin