+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1163 Saga (1930 BA) Classification: Outer Main-belt Asteroid          SPK-ID: 2001163 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04264870866545243 3.2404e-08   a 3.216446404228516 1.5209e-08 au q 3.079269118596532 1.0262e-07 au i 9.024406805425757 3.4337e-06 deg node 127.5157438174249 2.6003e-05 deg peri 199.7224526575943 5.5381e-05 deg M 45.93284926395405 4.7863e-05 deg tp 2458731.666249576281 (2019-Sep-05.16624958) 0.00028067 TDB period 2106.992091790118 5.77 1.4944e-05 4.091e-08 d yr n .1708596825791316 1.2119e-09 deg/d Q 3.3536236898605 1.5858e-08 au   Orbit Determination Parameters    # obs. used (total)      3094      data-arc span      33188 days (90.86 yr)      first obs. used      1930-01-05      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42446      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:58:49   Additional Information  Earth MOID = 2.06833 au   Jupiter MOID = 1.88487 au   T_jup = 3.169  [ 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 MPO502164   diameter diameter 32.429 km 0.261 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 9.365 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.147   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1163 Saga (1930 BA)          Discovered 1930-Jan-20 by Reinmuth, K. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-28 06:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin