+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   707 Steina (A910 YA) Classification: Main-belt Asteroid          SPK-ID: 2000707 [ 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 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1079887366285157 3.6127e-08   a 2.180469272183552 4.0459e-09 au q 1.945003150223151 7.9445e-08 au i 4.273462009302663 2.7628e-06 deg node 281.9035812597598 5.24e-05 deg peri 90.87731860130235 5.4013e-05 deg M 63.50503485473056 1.2845e-05 deg tp 2458793.042547271513 (2019-Nov-05.54254727) 4.1946e-05 TDB period 1176.043492505728 3.22 3.2733e-06 8.962e-09 d yr n .3061111279421893 8.52e-10 deg/d Q 2.415935394143953 4.4829e-09 au   Orbit Determination Parameters    # obs. used (total)      2993      data-arc span      40142 days (109.90 yr)      first obs. used      1910-12-22      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40742      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:55:33   Additional Information  Earth MOID = .950754 au   Jupiter MOID = 3.02454 au   T_jup = 3.670  [ hide covariance matrix ] Orbital Elements at Epoch 2456494.5 (2013-Jul-21.0) TDB Reference: JPL 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1078502455860126 3.6216e-08   q 1.945067098408275 7.9612e-08 au tp 2456440.508887733958 (2013-May-28.00888773) 4.2243e-05 TDB node 281.9790746760183 5.2438e-05 deg peri 90.68417915712539 5.4043e-05 deg i 4.271912605124657 2.7622e-06 deg   Orbit Determination Parameters    # obs. used (total)      2993      data-arc span      40142 days (109.90 yr)      first obs. used      1910-12-22      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40742      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:55:33   Additional Information  Jupiter MOID = 3.02454 au   T_jup = 3.670  Orbit Covariance (6×6)   e q tp node peri i e 1.311610750246438E-15 -2.880341671061706E-15 1.376420388804024E-13 1.647565480334261E-14 3.515891368732451E-14 -1.420144143775697E-15 q -2.880341671061706E-15 6.338044629707104E-15 -3.203143693370554E-13 -3.596943554138651E-14 -8.374409240281459E-14 3.167316565397851E-15 tp 1.376420388804024E-13 -3.203143693370554E-13 1.784449085893061E-9 1.61981758464276E-12 5.69217426113107E-10 5.134309871570165E-13 node 1.647565480334261E-14 -3.596943554138651E-14 1.61981758464276E-12 2.749696710925886E-9 -2.741078323246881E-9 -1.454113737626818E-11 peri 3.515891368732451E-14 -8.374409240281459E-14 5.69217426113107E-10 -2.741078323246881E-9 2.92067670693551E-9 1.464188463875821E-11 i -1.420144143775697E-15 3.167316565397851E-15 5.134309871570165E-13 -1.454113737626818E-11 1.464188463875821E-11 7.629521870571545E-12 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.1   n/a MPO435701   diameter diameter 9.003 km 0.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 414. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Menke, J.; Cooney, W.; Gross, J.; Terrell, D. (2008) Minor Planet Bull. 35, 155-160.] geometric albedo albedo 0.315   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   707 Steina (A910 YA)          Discovered 1910-Dec-22 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A910 YA = 1966 DB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-27 02:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin